Throughout the long period of religious doubt, I had been rendered very unhappy by the gradual loss of belief, but when the process was completed, I found to my surprise that I was quite glad to be done with the whole subject.

Diversity is essential to happiness and in Utopia there is hardly any. This is a defect in all planned social systems.

The qualities most needed are charity and tolerance, not some form of fanatical faith such as is offered to us by the various rampant isms

Belief in a Divine mission is one of the many forms of certainty that have afflicted the human race.

The Axiom of Choice is necessary to select a set from an infinite number of socks, but not an infinite number of shoes.

Public opinion is always more tyrannical towards those who obviously fear it than towards those who feel indifferent to it.

If you had the power to destroy the world, would you do so?