War...seems a mere madness, a collective insanity.

Every living thing is a sort of imperialist, seeking to transform as much as possible of its environment into itself.

The finding of arguments for a conclusion given in advance is not philosophy, but special pleading

A life without adventure is likely to be unsatisfying, but a life in which adventure is allowed to take whatever form it will is sure to be short.

The triumph of science has been mainly due to its practical utility, and there has been an attempt to divorce this aspect from that of theory, thus making science more and more a technique, and less and less a doctrine as to the nature of the world. The penetration of this point of view to philosophers is very recent.

I say people who feel they must have a faith or religion in order to face life are showing a kind of cowardice, which in any other sphere would be considered contemptible. But when it is in the religious sphere it is thought admirable, and I cannot admire cowardice whatever sphere it is in.

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