There is but one right, and the possibilities of wrong are infinite.

No one can help another very much in these crises of life; but love and sympathy count for something.

There is no greater mistake than the hasty conclusion that opinions are worthless because they are badly argued.

Rome is the one great spiritual organisation which is able to resist and must, as a matter of life and death, the progress of science and modern civilization

It is not what we believe, but why we believe it. Moral responsibility lies in diligently weighing the evidence. We must actively doubt; we have to scrutinize our views, not take them on trust. No virtue attached to blindly accepting orthodoxy, however 'venerable'.

The only question which any wise man can ask himself, and which any honest man will ask himself, is whether a doctrine is true or false.

Proclaim human equality as loudly as you like, Witless will serve his brother.