Science does not know its debt to imagination.

Every spirit makes its house, and we can give a shrewd guess from the house to the inhabitant.

We are shut up in school and college recitation rooms for ten to fifteen years, and come out at last with a bellyful of words and do not know a thing. We cannot use our hands, or our legs, or our eyes, or our arms. We do not know an edible root in the woods. We cannot tell our course by the stars, nor the hour of day by the sun. It is well if we can swim and skate. We are afraid of a horse or a cow, of a dog, of a cat, of a spider. Far better was the Roman rule to teach a boy nothing that he could not learn standing.

Look out! Behind you!

Every genuine work of art has as much reason for being as the earth and the sun.

Those who stay away from the election think that one vote will do no good. 'Tis but one step more to think one vote will do no harm.

Build therefore your own world.