All definite knowledge - so I should contend - belongs to science; all dogma as to what surpasses definite knowledge belongs to theology. But between theology and science there is a No Man's Land, exposed to attack by both sides; this No Man's Land is philosophy.

The very best proof that something can be done is that someone has already done it.

To fear love is to fear life.

Fear is the parent of cruelty, and therefore it is no wonder if cruelty and religion go hand in hand.

Our beliefs are, however, often contrary to fact.

The first effect of emancipation from the Church was not to make men think rationally, but to open their minds to every sort of antique nonsense

America remained a land of promise for lovers of freedom. Even Byron, at a moment when he was disgusted with Napoleon for not committing suicide, wrote an eloquent stanza in praise of Washington.