Does “Pay attention to the ounces, and the pounds take care of themselves” make sense when planning...












-1
















The classic advice given to backpackers trying to limit the weight they have to carry is “Pay attention to the ounces, and the pounds take care of themselves.”




Brooks Landon M.A. Ph.D.. Building Great Sentences: How to Write the Kinds of Sentences You Love to Read (Great Courses) (2013).



How's the quoted sentence true in reference to backpacking specifically?



The pounds cause most of the mass and physical burden.










share|improve this question




















  • 2





    Let's reopen this, its not about whether a sentence makes sense but rather whether or not this would be true for backpacking. See the comments here english.stackexchange.com/questions/473640/… and here outdoors.meta.stackexchange.com/questions/1338/…

    – Charlie Brumbaugh
    Nov 20 '18 at 14:20






  • 1





    No exactly answering the question, but I have noticed that while going light weight with one or other piece of gear might not save a lot in total weight, but that one or two saved kilograms might make a huge difference. At least for me there seems to be a tipping point in the bearability of the weight I carry on my shoulders, especially on long hikes.

    – april rain
    Nov 21 '18 at 8:42











  • The expression is a tautology. Applied to this question, it's equivalent to asking "Does reducing carried weight make sense when planning backpacking gear?". Well, of course it does.

    – Gabriel C.
    Nov 21 '18 at 14:02


















-1
















The classic advice given to backpackers trying to limit the weight they have to carry is “Pay attention to the ounces, and the pounds take care of themselves.”




Brooks Landon M.A. Ph.D.. Building Great Sentences: How to Write the Kinds of Sentences You Love to Read (Great Courses) (2013).



How's the quoted sentence true in reference to backpacking specifically?



The pounds cause most of the mass and physical burden.










share|improve this question




















  • 2





    Let's reopen this, its not about whether a sentence makes sense but rather whether or not this would be true for backpacking. See the comments here english.stackexchange.com/questions/473640/… and here outdoors.meta.stackexchange.com/questions/1338/…

    – Charlie Brumbaugh
    Nov 20 '18 at 14:20






  • 1





    No exactly answering the question, but I have noticed that while going light weight with one or other piece of gear might not save a lot in total weight, but that one or two saved kilograms might make a huge difference. At least for me there seems to be a tipping point in the bearability of the weight I carry on my shoulders, especially on long hikes.

    – april rain
    Nov 21 '18 at 8:42











  • The expression is a tautology. Applied to this question, it's equivalent to asking "Does reducing carried weight make sense when planning backpacking gear?". Well, of course it does.

    – Gabriel C.
    Nov 21 '18 at 14:02
















-1












-1








-1









The classic advice given to backpackers trying to limit the weight they have to carry is “Pay attention to the ounces, and the pounds take care of themselves.”




Brooks Landon M.A. Ph.D.. Building Great Sentences: How to Write the Kinds of Sentences You Love to Read (Great Courses) (2013).



How's the quoted sentence true in reference to backpacking specifically?



The pounds cause most of the mass and physical burden.










share|improve this question

















The classic advice given to backpackers trying to limit the weight they have to carry is “Pay attention to the ounces, and the pounds take care of themselves.”




Brooks Landon M.A. Ph.D.. Building Great Sentences: How to Write the Kinds of Sentences You Love to Read (Great Courses) (2013).



How's the quoted sentence true in reference to backpacking specifically?



The pounds cause most of the mass and physical burden.







backpacking






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 20 '18 at 19:56









Martin F

1,9371829




1,9371829










asked Nov 17 '18 at 19:49









Greek - Area 51 ProposalGreek - Area 51 Proposal

26217




26217








  • 2





    Let's reopen this, its not about whether a sentence makes sense but rather whether or not this would be true for backpacking. See the comments here english.stackexchange.com/questions/473640/… and here outdoors.meta.stackexchange.com/questions/1338/…

    – Charlie Brumbaugh
    Nov 20 '18 at 14:20






  • 1





    No exactly answering the question, but I have noticed that while going light weight with one or other piece of gear might not save a lot in total weight, but that one or two saved kilograms might make a huge difference. At least for me there seems to be a tipping point in the bearability of the weight I carry on my shoulders, especially on long hikes.

    – april rain
    Nov 21 '18 at 8:42











  • The expression is a tautology. Applied to this question, it's equivalent to asking "Does reducing carried weight make sense when planning backpacking gear?". Well, of course it does.

    – Gabriel C.
    Nov 21 '18 at 14:02
















  • 2





    Let's reopen this, its not about whether a sentence makes sense but rather whether or not this would be true for backpacking. See the comments here english.stackexchange.com/questions/473640/… and here outdoors.meta.stackexchange.com/questions/1338/…

    – Charlie Brumbaugh
    Nov 20 '18 at 14:20






  • 1





    No exactly answering the question, but I have noticed that while going light weight with one or other piece of gear might not save a lot in total weight, but that one or two saved kilograms might make a huge difference. At least for me there seems to be a tipping point in the bearability of the weight I carry on my shoulders, especially on long hikes.

    – april rain
    Nov 21 '18 at 8:42











  • The expression is a tautology. Applied to this question, it's equivalent to asking "Does reducing carried weight make sense when planning backpacking gear?". Well, of course it does.

    – Gabriel C.
    Nov 21 '18 at 14:02










2




2





Let's reopen this, its not about whether a sentence makes sense but rather whether or not this would be true for backpacking. See the comments here english.stackexchange.com/questions/473640/… and here outdoors.meta.stackexchange.com/questions/1338/…

– Charlie Brumbaugh
Nov 20 '18 at 14:20





Let's reopen this, its not about whether a sentence makes sense but rather whether or not this would be true for backpacking. See the comments here english.stackexchange.com/questions/473640/… and here outdoors.meta.stackexchange.com/questions/1338/…

– Charlie Brumbaugh
Nov 20 '18 at 14:20




1




1





No exactly answering the question, but I have noticed that while going light weight with one or other piece of gear might not save a lot in total weight, but that one or two saved kilograms might make a huge difference. At least for me there seems to be a tipping point in the bearability of the weight I carry on my shoulders, especially on long hikes.

– april rain
Nov 21 '18 at 8:42





No exactly answering the question, but I have noticed that while going light weight with one or other piece of gear might not save a lot in total weight, but that one or two saved kilograms might make a huge difference. At least for me there seems to be a tipping point in the bearability of the weight I carry on my shoulders, especially on long hikes.

– april rain
Nov 21 '18 at 8:42













The expression is a tautology. Applied to this question, it's equivalent to asking "Does reducing carried weight make sense when planning backpacking gear?". Well, of course it does.

– Gabriel C.
Nov 21 '18 at 14:02







The expression is a tautology. Applied to this question, it's equivalent to asking "Does reducing carried weight make sense when planning backpacking gear?". Well, of course it does.

– Gabriel C.
Nov 21 '18 at 14:02












3 Answers
3






active

oldest

votes


















7














It does make sense to watch the weight of your gear and go for lighter gear when possible. A few ounces here and there will add up to pounds.



On the other hand, it is also possible to be penny wise and pound foolish and in my experience at least, this is far more common, you will see overweight hikers and climbers buying titanium gear for example.



I once had another backpacker with his gut hanging over his belt inform me that his water shoes were 4 ounces lighter than mine.



Realistically, this is just a saying and not an ironclad rule.






share|improve this answer































    5














    There are several expressions akin to




    Pay attention to the ounces, and the pounds take care of themselves.




    The most famous saying is




    Take care of the pennies and the pounds will take care of themselves.




    ascribed to Lord Chesterfield in 1747 by Phrase Finder. (There were 240 pence (pennies) to the pound sterling.) The statement means "to be thrifty and not to squander money", and was memorably updated by Sen. Everett Dirksen, commenting on how federal spending tended to get out of control:




    a billion dollars here, a billion dollars there, and pretty soon
    you are talking about real money.




    Ounces or pennies or a mere billion dollars, the principle is the same: look at the cost or weight of every item you buy or take with you on a backpacking trip and try to pare down the weight or cost and your wallet will be fatter and your pack lighter.



    Some backpackers (and racing sailors) cut the handle of their toothbrush in half to save weight, but you don't have to be that extreme. Some mountaineers make one of their water bottles do double duty as their pee bottle when they are tentbound, but IMO, that is going much too far. Carry extra clothes so you can change into dry clothes, but don't worry about dirty clothes. Repackage food to eliminate glass and cardboard. Take a tiny travel sized tube of toothpaste (preferably already partially used) -- or no toothpaste at all, just floss -- your teeth won't drop out in a couple of weeks.



    Everything you take should be essential, according to your standards, and everything should be scrutinized: (1) do I really need X? (2) do I really need this much of X? (3) Can I repackage X to eliminate weight?






    share|improve this answer

































      0














      Little things add up.




      • Do you need a set of batteries a day for your GPS or is 3 sets enough for a week.

      • Take food out of boxes. A plastic bag is 6 grams. A box is 40 grams. -- about an ounce. Repeat for 21 meals, that's a pound and a half.

      • What's in your repair kit? I found last full check I did I had ladderlock buckles incompatible with my present gear. How many safety pins do you really need?


      There's lots of lists of this sort of stuff. Some people are fanatic about it. I heard of one guy who took the extra 4" off his boot laces. Another to cut out the liner of his running shorts.



      It can go too far. Another guy used a cheap $2 use once special rain jacket. And it rained the whole week. Fortunately for him, I had a small roll of duct tape.



      You find that 'expedition grade' stuff is a lot less fragile, and often somewhat heavier that the super light stuff.



      The less you carry, the lighter your load, but also you are less capable of dealing with the unexpected.



      "Take care of the pennies then the pounds (british money) will take care of themselves."



      but also



      "Some are penny-wise but pound-foolish"






      share|improve this answer























        Your Answer








        StackExchange.ready(function() {
        var channelOptions = {
        tags: "".split(" "),
        id: "395"
        };
        initTagRenderer("".split(" "), "".split(" "), channelOptions);

        StackExchange.using("externalEditor", function() {
        // Have to fire editor after snippets, if snippets enabled
        if (StackExchange.settings.snippets.snippetsEnabled) {
        StackExchange.using("snippets", function() {
        createEditor();
        });
        }
        else {
        createEditor();
        }
        });

        function createEditor() {
        StackExchange.prepareEditor({
        heartbeatType: 'answer',
        autoActivateHeartbeat: false,
        convertImagesToLinks: false,
        noModals: true,
        showLowRepImageUploadWarning: true,
        reputationToPostImages: null,
        bindNavPrevention: true,
        postfix: "",
        imageUploader: {
        brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
        contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
        allowUrls: true
        },
        noCode: true, onDemand: true,
        discardSelector: ".discard-answer"
        ,immediatelyShowMarkdownHelp:true
        });


        }
        });














        draft saved

        draft discarded


















        StackExchange.ready(
        function () {
        StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2foutdoors.stackexchange.com%2fquestions%2f21072%2fdoes-pay-attention-to-the-ounces-and-the-pounds-take-care-of-themselves-make%23new-answer', 'question_page');
        }
        );

        Post as a guest















        Required, but never shown

























        3 Answers
        3






        active

        oldest

        votes








        3 Answers
        3






        active

        oldest

        votes









        active

        oldest

        votes






        active

        oldest

        votes









        7














        It does make sense to watch the weight of your gear and go for lighter gear when possible. A few ounces here and there will add up to pounds.



        On the other hand, it is also possible to be penny wise and pound foolish and in my experience at least, this is far more common, you will see overweight hikers and climbers buying titanium gear for example.



        I once had another backpacker with his gut hanging over his belt inform me that his water shoes were 4 ounces lighter than mine.



        Realistically, this is just a saying and not an ironclad rule.






        share|improve this answer




























          7














          It does make sense to watch the weight of your gear and go for lighter gear when possible. A few ounces here and there will add up to pounds.



          On the other hand, it is also possible to be penny wise and pound foolish and in my experience at least, this is far more common, you will see overweight hikers and climbers buying titanium gear for example.



          I once had another backpacker with his gut hanging over his belt inform me that his water shoes were 4 ounces lighter than mine.



          Realistically, this is just a saying and not an ironclad rule.






          share|improve this answer


























            7












            7








            7







            It does make sense to watch the weight of your gear and go for lighter gear when possible. A few ounces here and there will add up to pounds.



            On the other hand, it is also possible to be penny wise and pound foolish and in my experience at least, this is far more common, you will see overweight hikers and climbers buying titanium gear for example.



            I once had another backpacker with his gut hanging over his belt inform me that his water shoes were 4 ounces lighter than mine.



            Realistically, this is just a saying and not an ironclad rule.






            share|improve this answer













            It does make sense to watch the weight of your gear and go for lighter gear when possible. A few ounces here and there will add up to pounds.



            On the other hand, it is also possible to be penny wise and pound foolish and in my experience at least, this is far more common, you will see overweight hikers and climbers buying titanium gear for example.



            I once had another backpacker with his gut hanging over his belt inform me that his water shoes were 4 ounces lighter than mine.



            Realistically, this is just a saying and not an ironclad rule.







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered Nov 17 '18 at 20:13









            Charlie BrumbaughCharlie Brumbaugh

            47.1k16130261




            47.1k16130261























                5














                There are several expressions akin to




                Pay attention to the ounces, and the pounds take care of themselves.




                The most famous saying is




                Take care of the pennies and the pounds will take care of themselves.




                ascribed to Lord Chesterfield in 1747 by Phrase Finder. (There were 240 pence (pennies) to the pound sterling.) The statement means "to be thrifty and not to squander money", and was memorably updated by Sen. Everett Dirksen, commenting on how federal spending tended to get out of control:




                a billion dollars here, a billion dollars there, and pretty soon
                you are talking about real money.




                Ounces or pennies or a mere billion dollars, the principle is the same: look at the cost or weight of every item you buy or take with you on a backpacking trip and try to pare down the weight or cost and your wallet will be fatter and your pack lighter.



                Some backpackers (and racing sailors) cut the handle of their toothbrush in half to save weight, but you don't have to be that extreme. Some mountaineers make one of their water bottles do double duty as their pee bottle when they are tentbound, but IMO, that is going much too far. Carry extra clothes so you can change into dry clothes, but don't worry about dirty clothes. Repackage food to eliminate glass and cardboard. Take a tiny travel sized tube of toothpaste (preferably already partially used) -- or no toothpaste at all, just floss -- your teeth won't drop out in a couple of weeks.



                Everything you take should be essential, according to your standards, and everything should be scrutinized: (1) do I really need X? (2) do I really need this much of X? (3) Can I repackage X to eliminate weight?






                share|improve this answer






























                  5














                  There are several expressions akin to




                  Pay attention to the ounces, and the pounds take care of themselves.




                  The most famous saying is




                  Take care of the pennies and the pounds will take care of themselves.




                  ascribed to Lord Chesterfield in 1747 by Phrase Finder. (There were 240 pence (pennies) to the pound sterling.) The statement means "to be thrifty and not to squander money", and was memorably updated by Sen. Everett Dirksen, commenting on how federal spending tended to get out of control:




                  a billion dollars here, a billion dollars there, and pretty soon
                  you are talking about real money.




                  Ounces or pennies or a mere billion dollars, the principle is the same: look at the cost or weight of every item you buy or take with you on a backpacking trip and try to pare down the weight or cost and your wallet will be fatter and your pack lighter.



                  Some backpackers (and racing sailors) cut the handle of their toothbrush in half to save weight, but you don't have to be that extreme. Some mountaineers make one of their water bottles do double duty as their pee bottle when they are tentbound, but IMO, that is going much too far. Carry extra clothes so you can change into dry clothes, but don't worry about dirty clothes. Repackage food to eliminate glass and cardboard. Take a tiny travel sized tube of toothpaste (preferably already partially used) -- or no toothpaste at all, just floss -- your teeth won't drop out in a couple of weeks.



                  Everything you take should be essential, according to your standards, and everything should be scrutinized: (1) do I really need X? (2) do I really need this much of X? (3) Can I repackage X to eliminate weight?






                  share|improve this answer




























                    5












                    5








                    5







                    There are several expressions akin to




                    Pay attention to the ounces, and the pounds take care of themselves.




                    The most famous saying is




                    Take care of the pennies and the pounds will take care of themselves.




                    ascribed to Lord Chesterfield in 1747 by Phrase Finder. (There were 240 pence (pennies) to the pound sterling.) The statement means "to be thrifty and not to squander money", and was memorably updated by Sen. Everett Dirksen, commenting on how federal spending tended to get out of control:




                    a billion dollars here, a billion dollars there, and pretty soon
                    you are talking about real money.




                    Ounces or pennies or a mere billion dollars, the principle is the same: look at the cost or weight of every item you buy or take with you on a backpacking trip and try to pare down the weight or cost and your wallet will be fatter and your pack lighter.



                    Some backpackers (and racing sailors) cut the handle of their toothbrush in half to save weight, but you don't have to be that extreme. Some mountaineers make one of their water bottles do double duty as their pee bottle when they are tentbound, but IMO, that is going much too far. Carry extra clothes so you can change into dry clothes, but don't worry about dirty clothes. Repackage food to eliminate glass and cardboard. Take a tiny travel sized tube of toothpaste (preferably already partially used) -- or no toothpaste at all, just floss -- your teeth won't drop out in a couple of weeks.



                    Everything you take should be essential, according to your standards, and everything should be scrutinized: (1) do I really need X? (2) do I really need this much of X? (3) Can I repackage X to eliminate weight?






                    share|improve this answer















                    There are several expressions akin to




                    Pay attention to the ounces, and the pounds take care of themselves.




                    The most famous saying is




                    Take care of the pennies and the pounds will take care of themselves.




                    ascribed to Lord Chesterfield in 1747 by Phrase Finder. (There were 240 pence (pennies) to the pound sterling.) The statement means "to be thrifty and not to squander money", and was memorably updated by Sen. Everett Dirksen, commenting on how federal spending tended to get out of control:




                    a billion dollars here, a billion dollars there, and pretty soon
                    you are talking about real money.




                    Ounces or pennies or a mere billion dollars, the principle is the same: look at the cost or weight of every item you buy or take with you on a backpacking trip and try to pare down the weight or cost and your wallet will be fatter and your pack lighter.



                    Some backpackers (and racing sailors) cut the handle of their toothbrush in half to save weight, but you don't have to be that extreme. Some mountaineers make one of their water bottles do double duty as their pee bottle when they are tentbound, but IMO, that is going much too far. Carry extra clothes so you can change into dry clothes, but don't worry about dirty clothes. Repackage food to eliminate glass and cardboard. Take a tiny travel sized tube of toothpaste (preferably already partially used) -- or no toothpaste at all, just floss -- your teeth won't drop out in a couple of weeks.



                    Everything you take should be essential, according to your standards, and everything should be scrutinized: (1) do I really need X? (2) do I really need this much of X? (3) Can I repackage X to eliminate weight?







                    share|improve this answer














                    share|improve this answer



                    share|improve this answer








                    edited Nov 17 '18 at 22:41

























                    answered Nov 17 '18 at 20:41









                    ab2ab2

                    12.6k340107




                    12.6k340107























                        0














                        Little things add up.




                        • Do you need a set of batteries a day for your GPS or is 3 sets enough for a week.

                        • Take food out of boxes. A plastic bag is 6 grams. A box is 40 grams. -- about an ounce. Repeat for 21 meals, that's a pound and a half.

                        • What's in your repair kit? I found last full check I did I had ladderlock buckles incompatible with my present gear. How many safety pins do you really need?


                        There's lots of lists of this sort of stuff. Some people are fanatic about it. I heard of one guy who took the extra 4" off his boot laces. Another to cut out the liner of his running shorts.



                        It can go too far. Another guy used a cheap $2 use once special rain jacket. And it rained the whole week. Fortunately for him, I had a small roll of duct tape.



                        You find that 'expedition grade' stuff is a lot less fragile, and often somewhat heavier that the super light stuff.



                        The less you carry, the lighter your load, but also you are less capable of dealing with the unexpected.



                        "Take care of the pennies then the pounds (british money) will take care of themselves."



                        but also



                        "Some are penny-wise but pound-foolish"






                        share|improve this answer




























                          0














                          Little things add up.




                          • Do you need a set of batteries a day for your GPS or is 3 sets enough for a week.

                          • Take food out of boxes. A plastic bag is 6 grams. A box is 40 grams. -- about an ounce. Repeat for 21 meals, that's a pound and a half.

                          • What's in your repair kit? I found last full check I did I had ladderlock buckles incompatible with my present gear. How many safety pins do you really need?


                          There's lots of lists of this sort of stuff. Some people are fanatic about it. I heard of one guy who took the extra 4" off his boot laces. Another to cut out the liner of his running shorts.



                          It can go too far. Another guy used a cheap $2 use once special rain jacket. And it rained the whole week. Fortunately for him, I had a small roll of duct tape.



                          You find that 'expedition grade' stuff is a lot less fragile, and often somewhat heavier that the super light stuff.



                          The less you carry, the lighter your load, but also you are less capable of dealing with the unexpected.



                          "Take care of the pennies then the pounds (british money) will take care of themselves."



                          but also



                          "Some are penny-wise but pound-foolish"






                          share|improve this answer


























                            0












                            0








                            0







                            Little things add up.




                            • Do you need a set of batteries a day for your GPS or is 3 sets enough for a week.

                            • Take food out of boxes. A plastic bag is 6 grams. A box is 40 grams. -- about an ounce. Repeat for 21 meals, that's a pound and a half.

                            • What's in your repair kit? I found last full check I did I had ladderlock buckles incompatible with my present gear. How many safety pins do you really need?


                            There's lots of lists of this sort of stuff. Some people are fanatic about it. I heard of one guy who took the extra 4" off his boot laces. Another to cut out the liner of his running shorts.



                            It can go too far. Another guy used a cheap $2 use once special rain jacket. And it rained the whole week. Fortunately for him, I had a small roll of duct tape.



                            You find that 'expedition grade' stuff is a lot less fragile, and often somewhat heavier that the super light stuff.



                            The less you carry, the lighter your load, but also you are less capable of dealing with the unexpected.



                            "Take care of the pennies then the pounds (british money) will take care of themselves."



                            but also



                            "Some are penny-wise but pound-foolish"






                            share|improve this answer













                            Little things add up.




                            • Do you need a set of batteries a day for your GPS or is 3 sets enough for a week.

                            • Take food out of boxes. A plastic bag is 6 grams. A box is 40 grams. -- about an ounce. Repeat for 21 meals, that's a pound and a half.

                            • What's in your repair kit? I found last full check I did I had ladderlock buckles incompatible with my present gear. How many safety pins do you really need?


                            There's lots of lists of this sort of stuff. Some people are fanatic about it. I heard of one guy who took the extra 4" off his boot laces. Another to cut out the liner of his running shorts.



                            It can go too far. Another guy used a cheap $2 use once special rain jacket. And it rained the whole week. Fortunately for him, I had a small roll of duct tape.



                            You find that 'expedition grade' stuff is a lot less fragile, and often somewhat heavier that the super light stuff.



                            The less you carry, the lighter your load, but also you are less capable of dealing with the unexpected.



                            "Take care of the pennies then the pounds (british money) will take care of themselves."



                            but also



                            "Some are penny-wise but pound-foolish"







                            share|improve this answer












                            share|improve this answer



                            share|improve this answer










                            answered Nov 30 '18 at 4:19









                            Sherwood BotsfordSherwood Botsford

                            6,90611644




                            6,90611644






























                                draft saved

                                draft discarded




















































                                Thanks for contributing an answer to The Great Outdoors Stack Exchange!


                                • Please be sure to answer the question. Provide details and share your research!

                                But avoid



                                • Asking for help, clarification, or responding to other answers.

                                • Making statements based on opinion; back them up with references or personal experience.


                                To learn more, see our tips on writing great answers.




                                draft saved


                                draft discarded














                                StackExchange.ready(
                                function () {
                                StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2foutdoors.stackexchange.com%2fquestions%2f21072%2fdoes-pay-attention-to-the-ounces-and-the-pounds-take-care-of-themselves-make%23new-answer', 'question_page');
                                }
                                );

                                Post as a guest















                                Required, but never shown





















































                                Required, but never shown














                                Required, but never shown












                                Required, but never shown







                                Required, but never shown

































                                Required, but never shown














                                Required, but never shown












                                Required, but never shown







                                Required, but never shown







                                這個網誌中的熱門文章

                                Tangent Lines Diagram Along Smooth Curve

                                Yusuf al-Mu'taman ibn Hud

                                Zucchini