The notion that science does not concern itself with first causes - that it leaves the field to theology or metaphysics, and confines itself to mere effects - this notion has no support in the plain facts. If it could, science would explain the origin of life on earth at once - and there is every reason to believe that it will do so on some not too remote tomorrow. To argue that gaps in knowledge which will confront the seeker must be filled, not by patient inquiry, but by intuition or revelation, is simply to give ignorance a gratuitous and preposterous dignity.

God is a Republican, and Santa Claus is a Democrat.

It is Hell, of course, that makes priests powerful, not Heaven, for after thousands of years of so-called civilization fear remains the one common denominator of mankind

A critic is a man who writes about things he doesn't like.

The aim of poetry, it appears, is to fill the mind with lofty thoughts--not to give it joy, but to give it a grand and somewhat gaudy sense of virtue. The essay is a weapon against the degenerate tendencies of the age. The novel, properly conceived, is a means of uplifting the spirit; its aim is to inspire, not merely to satisfy the low curiosity of man in man.

The best years are the forties; after fifty a man begins to deteriorate, but in the forties he is at the maximum of his villainy.

To sum up: 1. The cosmos is a gigantic fly-wheel making 10,000 revolutions a minute. 2. Man is a sick fly taking a dizzy ride on it. 3. Religion is the theory that the wheel was designed and set spinning to give him the ride.