The demand for certainty is one which is natural to man, but is nevertheless an intellectual vice. If you take your children for a picnic on a doubtful day, they will demand a dogmatic answer as to whether it will be fine or wet, and be disappointed in you when you cannot be sure.

If everything has a cause, then God must have a cause. If there can be anything without a cause, it may just be the world as God.

My own belief is that in most ages and in most places obscure psychological forces led men to adopt systems involving quite unnecessary cruelty, and that this is still the case among the most civilized races at the present day.

I FIND IT SO DIFFICULT NOT TO HATE, WHEN I DO NOT HATE I FEEL WE FEW ARE SO LONELY IN THE WORLD

To expect a personality to survive the disintegration of the brain is like expecting a cricket club to survive when all of its members are dead.

Christ . . . said that a man who had looked after a woman lustfully had sinned as much as the man who had seduced her. How absurd!

What the world needs is not dogma but an attitude of scientific inquiry.