Different men seek after happiness in different ways and by different means, and so make for themselves different modes of life and forms of government.

Thinking is different from perceiving and is held to be in part imagination, in part judgment

The physician himself, if sick, actually calls in another physician, knowing that he cannot reason correctly if required to judge his own condition while suffering.

It is more difficult to organize a peace than to win a war; but the fruits of victory will be lost if the peace is not organized.

Courage is the first of human qualities because it is the quality which guarantees the others.

In all things of nature there is something of the marvelous.

To know what virtue is is not enough; we must endeavor to possess and to practice it, or in some other manner actually ourselves to become good.