A man is called selfish not for pursuing his own good, but for neglecting his neighbor's.

As an exercise of the reasoning faculties, pure mathematics is an admirable exercise, because it consists of reasoning alone and does not encumber the student with any exercise of judgment.

The word of knowledge, strictly employed, implies three things: truth, proof, and conviction.

Man is naturally more desirous of a quiet and approving, than of a vigilant and tender conscience--more desirous of security than of safety.

All gaming, since it implies a desire to profit at the expense of another, involves a breach of the tenth commandment.

Men first make up their minds (and the smaller the mind the sooner made up), and then seek for the reasons; and if they chance to stumble upon a good reason, of course they do not reject it. But though they are right, they are only right by chance.

Of metaphors, those generally conduce most to energy or vivacity of style which illustrate an intellectual by a sensible object.