Technology made large populations possible; large populations now make technology indispensable.

If we do not permit the earth to produce beauty and joy, it will in the end not produce food, either.

It is sometimes easier to head an institute for the study of child guidance than it is to turn one brat into a decent human being.

Nothing is too great or too good to be true. Do not believe that we can imagine things better than they are. In the long run, in the ultimate outlook, in the eye of the Creator, the possibilities of existence, the possibilities open to us, are beyond our imagination.

Though we face the facts of sex we are more reluctant than ever to face the fact of death or the crueler facts of life, either biological or social.

Is it wholly fantastic to admit the possibility that Nature herself strove toward what we call beauty? Face to face with any one of the elaborate flowers which man's cultivation has had nothing to do with, it does not seem fantastic to me. We put survival first. But when we have a margin of safety left over, we expend it in the search for the beautiful. Who can say that Nature does not do the same?

Poetry, mythology, and religion represent the world as man would like to have it, while science represents the world as he gradually comes to discover it.