One should as a rule respect public opinion in so far as is necessary to avoid starvation and to keep out of prison, but anything that goes beyond this is voluntary submission to an unnecessary tyranny.

If you wish to be happy yourself, you must resign yourself to seeing others also happy.

Modern technique has made it possible for leisure, within limits, to be not the prerogative of small privileged classes, but a right evenly distributed throughout the community. The morality of work is the morality of slaves, and the modern world has no need of slavery.

The best life is the one in which the creative impulses play the largest part and the possessive impulses the smallest.

The commonest objection to birth control is that it is against nature.

One of the most painful circumstances of recent advances in science is that each one makes us know less than we thought we did

All definite knowledge - so I should contend - belongs to science; all dogma as to what surpasses definite knowledge belongs to theology. But between theology and science there is a No Man's Land, exposed to attack by both sides; this No Man's Land is philosophy.