No man's knowledge here can go beyond his experience.

Every man has a property in his own person. This nobody has a right to, but himself.

The only defense against the world is a thorough knowledge of it.

Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.

It is one thing to show a man that he is in an error, and another to put him in possession of truth

An excellent man, like precious metal, is in every way invariable; A villain, like the beams of a balance, is always varying, upwards and downwards.