Whatever we learn has a purpose and whatever we do affects everything and everyone else, if even in the tiniest way. Why, when a housefly flaps his wings, a breeze goes round the world; when a speck of dust falls to the ground, the entire planet weighs a little more; and when you stamp your foot, the earth moves slightly off its course. Whenever you laugh, gladness spreads like the ripples in a pond; and whenever you're sad, no one anywhere can be really happy. And it's much the same thing with knowledge, for whenever you learn something new, the whole world becomes that much richer.
Have you ever heard the wonderful silence just before the dawn? Or the quiet and calm just as a storm ends? Or perhaps you know the silence when you haven't the answer to a question you've been asked, or the hush of a country road at night, or the expectant pause of a room full of people when someone is just about to speak, or, most beautiful of all, the moment after the door closes and you're alone in the whole house? Each one is different, you know, and all very beautiful if you listen carefully.
You see, it's really quite simple. A simile is just a mode of comparison employing 'as' and 'like' to reveal the hidden character or essence of whatever we want to describe, and through the use of fancy, association, contrast, extension, or imagination, to enlarge our understanding or perception of human experience and observation.
Don't try to leave for there's so very much to do, and you still have over eight hundred years to go on the first job.' 'But why do only unimportant things?' 'Think of all the trouble it saves. If you only do the easy and useless jobs, you'll never have to worry about the important ones which are so difficult. You just won't have the time. For there's always something to do to keep you from what you really should be doing.