Man is the only one in whom the instinct of life falters long enough to enable it to ask the question "Why?

Anxiety and distress, interrupted occasionally by pleasure, is the normal course of man's existence.

If only the fit survive and if the fitter they are the longer they survive, then Volvox must have demonstrated its superb fitness more conclusively than any higher animal ever has.

The most serious charge which can be brought against New England is not Puritanism but February.

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.

The cockroach and the bird were both here long before we were. Both could.

A tragic writer does not have to believe in God, but he must believe in man.