Man is the metre of all things, the hand is the instrument of instruments, and the mind is the form of forms.

Men in general desire the good and not merely what their fathers had.

People do not naturally become morally excellent or practically wise. They become so, if at all, only as the result of lifelong personal and community effort.

There is no genius who hasn't a touch of insanity.

The ultimate end...is not knowledge, but action. To be half right on time may be more important than to obtain the whole truth too late.

Men regard it as their right to return evil for evil and, if they cannot, feel they have lost their liberty.

The secret to humor is surprise.