We ought to look the world frankly in the face.

There is an artist imprisoned in each one of us. Let him loose to spread joy everywhere.

All great books contain boring portions, and all great lives have contained uninteresting stretches.

What is matter? Never mind.

The first dogma which I came to disbelieve was that of free will. It seemed to me that all notions of matter were determined by the laws of dynamics and could not therefore be influenced by human wills.

Belief in God and a future life makes it possible to go through life with less of stoic courage than is needed by skeptics.

The great majority of men and women, in ordinary times, pass through life without ever contemplating or criticising, as a whole, either their own conditions or those of the world at large.