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.

Electronic calculators can solve problems which the man who made them cannot solve; but no government-subsidized commission of engineers and physicists could create a worm.

When, in the present world, men behave well, that is no doubt sometimes because they are creatures of habit as well as, sometimes, because they are reasonable.

Whenever man forgets that man is an animal, the result is always to make him less humane.

The wilderness and the idea of wilderness is one of the permanent homes of the human spirit.

Life is very persistent and very ingenious in seizing every opportunity.

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