In history as it comes to be written, there is usually some Spirit of the Age which historians can define, but the shape of things is seldom so clear to those who live them. To most thoughtful men it has generally seemed that theirs was an Age of Confusion.

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

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

There is no such thing as a dangerous woman; there are only susceptible men.

Both the cockroach and the bird would get along very well without us, although the cockroach would miss us most.

An abundance of some good things is perfectly compatible with the scarcity of others; that life is everywhere precarious, man everywhere small.

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.