The senses are gateways to the intelligence. There is nothing in the intelligence which did not first pass through the senses.

Metaphysics involves intuitive knowledge of unprovable starting-points concepts and truth and demonstrative knowledge of what follows from them.

We give up leisure in order that we may have leisure, just as we go to war in order that we may have peace.

The weak are always anxious for justice and equality. The strong pay no heed to either.

The wise man does not expose himself needlessly to danger, since there are few things for which he cares sufficiently; but he is willing, in great crises, to give even his life - knowing that under certain conditions it is not worthwhile to live.

A government which is composed of the middle class more nearly approximates to democracy than to oligarchy, and is the safest of the imperfect forms of government.

In making a speech one must study three points: first, the means of producing persuasion; second, the language; third the proper arrangement of the various parts of the speech.