 I have pulled my handcart when I was so weak and weary from illness and lack of food that I could hardly put one foot ahead of the other. I have looked ahead and seen a patch of sand or a hill slope, and I have said, I can go only that far, and there I must give up, for I cannot pull a load through it. And a wife with a baby in her arms by his side. I have gone to that sand, and when I reached it...