One of the symptoms of an approaching nervous breakdown is the belief that one's work is terribly important.

I believe myself that romantic love is the source of the most intense delights that life has to offer. In the relation of a man and woman who love each other with passion and imagination and tenderness, there is something of inestimable value, to be ignorant of which is a great misfortune to any human being.

Much of the most important evils that mankind have to consider are those which they inflict upon each other through stupidity or malevolence or both.

The degree of one's emotions varies inversely with one's knowledge of the facts - the less you know the hotter you get.

It is the things for which there is no evidence that are believed with passion.

A stupid man's report of what a clever man says can never be accurate, because he unconsciously translates what he hears into something he can understand.

There have been poverty, pestilence, and famine, which were due to man's inadequate mastery of nature. There have been wars, oppressions and tortures which have been due to men's hostility to their fellow men.