All things are parts of one single system, which is called nature; the individual life is good when it is in harmony with nature.

Better to trip with the feet than with the tongue

Man conquers the world by conquering himself.

Fate is the endless chain of causation, whereby things are; the reason or formula by which the world goes on.

That which exercises reason is more excellent than that which does not exercise reason; there is nothing more excellent than the universe, therefore the universe exercises reason.

No matter whether you claim a slave by purchase or capture, the title is bad. They who claim to own their fellow-men, look down into the pit and forget the justice that should rule the world.

The reason why we have two ears and only one mouth is that we may listen the more and talk the less.