“In complex trains of thought, signs are indispensable.”

“We are not judicious in love; we do not select those whom we ought to love, but those whom we cannot help loving.”

“We only see what interests us, and we have only insight in proportion to our sympathy.”

“Man is the only animal whose desires increase as they are fed; the only animal that is never satisfied.”

“He who sees the truth, let him proclaim it, without asking who is for it or who is against it.”

“Let no man imagine that he has no influence. Whoever he may be, and wherever he may be placed, the man who thinks becomes a light and a power.”

“Personal experience is the basis of all real literature.”