The immense majority of intellectually eminent men disbelieve in the Christian religion, but they conceal the fact in public, because they are afraid of losing their incomes.

There is no need to worry about mere size. We do not necessarily respect a fat man more than a thin man. Sir Isaac Newton was very much smaller than a hippopotamus, but we do not on that account value him less.

Unhappy business men, I am convinced, would increase their happiness more by walking six miles every day than by any conceivable change of philosophy.

Man can be scientifically manipulated.

Berkeley retains the merit of having shown that the existence of matter is capable of being denied without absurdity.

My own view on religion is . . . It helped in early days to fix the calendar, and . . . to chronicle eclipses . . . These two services I am prepared to acknowledge.

All movements go too far.