It is my conviction that no normal man ever fell in love, within the ordinary meaning of the term, after the age of thirty.

Wife: a former sweetheart.

High-toned humanitarians constantly overestimate the sufferings of those they sympathize with.

I know of no existing nation that deserves to live, and I know of very few individuals.

The fact that I have no remedy for all the sorrows of the world is no reason for my accepting yours. It simply supports the strong probability that yours is a fake.

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

The scientist who yields anything to theology, however slight, is yielding to ignorance and false pretenses, and as certainly as if he granted that a horse-hair put into a bottle of water will turn into a snake.