Americans need rest, but do not know it.

One of the main causes of trouble in the world is dogmatic and fanatical belief in some doctrine for which there is no adequate evidence

The first step in wisdom, as well as in morality, is to open the windows of the ego as wide as possible.

I am not myself in any degree ashamed of having changed my opinions.

There are three ways of securing a society that shall be stable as regards population. The first is that of birth control, the second that of infanticide or really destructive wars, and the third that of general misery except for a powerful minority.

The key to happiness is accepting one unpleasant reality every day.

I FIND IT SO DIFFICULT NOT TO HATE, WHEN I DO NOT HATE I FEEL WE FEW ARE SO LONELY IN THE WORLD