Youth should stay away from all evil, especially things that produce wickedness and ill-will.

When the looms spin by themselves, we'll have no need for slaves.

Tyrants preserve themselves by sowing fear and mistrust among the citizens by means of spies, by distracting them with foreign wars, by eliminating men of spirit who might lead a revolution, by humbling the people, and making them incapable of decisive action.

To be conscious that we are perceiving or thinking is to be conscious of our own existence.

Men are swayed more by fear than by reverence.

A democracy exists whenever those who are free and are not well-off, being in the majority, are in sovereign control of government, an oligarchy when control lies with the rich and better-born, these being few.

It is the mark of an educated mind to be able to entertain a thought without accepting it.