I am as firmly convinced that religions do harm as I am that they are untrue.

Why repeat the old errors, if there are so many new errors to commit?

We must be sceptical even of our scepticism.

Ignore fact and reason, live entirely in the world of your own fantastic and myth-producing passions; do this whole-heartedly and with conviction, and you will become one of the prophets of your age.

Another merit of home is that it preserves the diversity between individuals. If we were all alike, it might be convenient for the bureaucrat and the statistician, but it would be very dull, and would lead to a very unprogressive society.

There are infinite possibilities of error, and more cranks take up fashionable untruths than unfashionable truths.

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