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

As machines get to be more and more like men, men will come to be more like machines

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.

Any euphemism ceases to be euphemistic after a time and the true meaning begins to show through. It's a losing game, but we keep on trying.

Those whose conscience demands that they defy authority in some ways that involve great consequences must be willing to accept some penalty

It is not ignorance but knowledge which is the mother of wonder.