“All serious innovation is only rendered possible by some accidentenabling unpopular persons to survive.”

“Collective wisdom, alas, is no adequate substitute for the intelligence of individuals. Individuals who opposed received opinions have been the source of all progress, both moral and intellectual. They have been unpopular, as was natural.”

“The secret of happiness is this: let your interest be as wide as possible and let your reactions to the things and persons who interest you be as far as possible friendly rather than hostile. ”

“Language serves not only to express thought but to make possible thoughts which could not exist without it.”

“Few people can be happy unless they hate some other person, nation, or creed.”

“The law of causality, I believe, like much that passes muster among philosophers, is a relic of a bygone age, surviving, like the monarchy, only because it is erroneously supposed to do no harm.”

“The wise man thinks about his troubles only when there is some purpose in doing so; at other times he thinks about other things, or, if it is night, about nothing at all.”