Philosophy bakes no bread

If you wish to be happy yourself, you must resign yourself to seeing others also happy.

So far I have been speaking of theoretical science, which is an attempt to understand the world. Practical science, which is an attempt to change the world, has been important from the first, and has continually increased in importance, until it has almost ousted theoretical science from men's thoughts.

Although it is a gloomy view to suppose that life will die out, sometimes when I contemplate the things that people do with their lives I think it is almost a consolation

Even in civilized mankind faint traces of monogamous instinct can be perceived.

The best life is the one in which the creative impulses play the largest part and the possessive impulses the smallest.

I am as firmly convinced that religions do harm as I am that they are untrue.