I can only say that, while my own opinions as to ethics do not satisfy me, other people's satisfy me still less.

The first dogma which I came to disbelieve was that of free will. It seemed to me that all notions of matter were determined by the laws of dynamics and could not therefore be influenced by human wills.

Suppose atomic bombs had reduced the population of the world to one brother and sister; should they let the human race die out?

The whole of theology, in regard to hell no less than to heaven, takes it for granted that Man is what is of most importance in the Universe of created beings. Since all theologians are men, this postulate has met with little opposition.

Beggars do not envy millionaires, though of course they will envy other beggars who are more successful.

What the world needs is not dogma but an attitude of scientific inquiry combined with a belief that the torture of millions is not desirable, whether inflicted by Stalin or by a Deity imagined in the likeness of the believer

We have almost reached the point where praise of rationality is held to mark a man as an old fogey regrettably surviving from a bygone age.