Why has my motley diary no jokes? Because it is a soliloquy and every man is grave alone.

The religion that is afraid of science dishonors God and commits suicide.

Science always goes abreast with the just elevation of the man, keeping step with religion and metaphysics; or, the state of science is an index of our self-knowledge.

As there is a use in medicine for poisons, so the world cannot move without rogues.

The German intellect wants the French sprightliness, the fine practical understanding of the English, and the American adventure; but it has a certain probity, which never rests in a superficial performance, but asks steadily, To what end? A German public asks for a controlling sincerity.

Plato says that the punishment which the wise suffer who refuse to take part in the government, is, to live under the government of worse men; and the like regret is suggested to all the auditors, as the penalty of abstaining to speak,--that they shall hear worse orators than themselves.

Let me admonish you, first of all, to go alone; to refuse the good models, even those which are sacred in the imagination of men, and dare to love God without mediator or veil.