A man's reputation is not in his own keeping, but lies at the mercy of the profligacy of others. Calumny requires no proof.

Principle is a passion for truth.

If our hours were all serene, we might probably take almost as little note of them as the dial does of those that are clouded.

The world loves to be amused by hollow professions, to be deceived by flattering appearances, to live in a state of hallucination; and can forgive everything but the plain, downright, simple, honest truth.

Books are a world in themselves, it is true; but they are not the only world. The world itself is a volume larger than all the libraries in it.

Books let us into their souls and lay open to us the secrets of our own.

The rule for traveling abroad is to take our common sense with us, and leave our prejudices behind.