I believe that the abolition of private ownership of land and capital is a necessary step toward any world in which the nations are to live at peace with one another.

I am compelled to fear that science will be used to promote the power of dominant groups rather than to make men happy.

There was, I think, never any reason to believe in any innate superiority of the male, except his superior muscle.

A habit of finding pleasure in thought rather than action is a safeguard against unwisdom and excessive love of power, a means of preserving serenity in misfortune and peace of mind among worries. A life confined to what is personal is likely, sooner or later, to become unbearably painful; it is only by windows into a larger and less fretful cosmos that the more tragic parts of life become endurable.

At the age of eleven, I began Euclid, with my brother as my tutor. ... I had not imagined that there was anything so delicious in the world. After I had learned the fifth proposition, my brother told me that it was generally considered difficult, but I had found no difficulty whatsoever. This was the first time it had dawned on me that I might have some intelligence.

The man who pursues happiness wisely will aim at the possession of a number of subsidiary interests in addition to those central ones upon which his life is built.

There is no difference between someone who eats too little and sees Heaven and someone who drinks too much and sees snakes.