Artists are on the average less happy than men of science.

There is little of the true philosophic spirit in Aquinas. He does not, like the Platonic Socrates, set out to follow wherever the argument may lead.

They must often change, who would be constant in happiness or wisdom. Those who continually search for happiness will never find it. Happiness is made, not found. To be without some of the things you want is an indispensable part of happiness.

Men who are unhappy, like men who sleep badly, are always proud of the fact.

Not to be absolutely certain is, I think, one of the essential things in rationality.

Historically, it is quite doubtful whether Christ ever existed at all, and if He did we do not know anything about Him.

Patriotism is the willingness to kill and be killed for trivial reasons.