The foundation of all morality is to have done, once and for all, with lying; to give up pretending to believe that for which there is no evidence, and repeating unintelligible propositions about things beyond the possibilities of knowledge.

Science has fulfilled her function when she has ascertained and enunciated truth.

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

Extinguished theologians lie about the cradle of every science, as strangled snakes beside that of Hercules

Size is not grandeur, and territory does not make a nation.

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

Agnosticism is not properly described as a "negative" creed, nor indeed as a creed of any kind, except in so far as it expresses absolute faith in the validity of a principle which is as much ethical as intellectual.