To live remains an art which everyone must learn, and which no one can teach.

The world's greatest thinkers have often been amateurs; for high thinking is the outcome of fine and independent living, and for that a professional chair offers no special opportunities.

Mankind is becoming a single unit, and that for a unit to fight against itself is suicide.

Even the most scientific investigator in science, the most thoroughgoing Positivist, cannot dispense with fiction; he must at least make use of categories, and they are already fictions, analogical fictions, or labels, which give us the same pleasure as children receive when they are told the "name" of a thing.

It is the little writer rather than the great writer who seems never to quote, and the reason is that he is never really doing anything else.

A sublime faith in human imbecility has seldom led those who cherish it astray.

Education, whatever else it should or should not be, must be an inoculation against the poisons of life and an adequate equipment in knowledge and skill for meeting the chances of life.