So far as I can remember, there is not one word in the Gospels in praise of intelligence.

Laughter is the most inexpensive and most effective wonder drug. Laughter is a universal medicine.

(on A History of Western Philosophy) I was sometimes accused by reviewers of writing not a true history but a biased account of the events that I arbitrarily chose to write of. But to my mind, a man without a bias cannot write interesting history - if, indeed, such man exists.

The essence of the liberal outlook lies not in what opinions are held, but in how they are held; instead of being held dogmatically, they are held tentatively, and with a consciousness that new evidence may at any moment lead to their abandonment.

To be able to fill leisure intelligently is the last product of civilization, and at present very few people have reached this level.

The opinions that are held with passion are always those for which no good ground exists; indeed the passion is the measure of the holders lack of rational conviction. Opinions in politics and religion are almost always held passionately.

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