When Thales was asked what was difficult, he said, To know one's self. And what was easy, To advise another.
It was a saying of his that education was an ornament in prosperity and a refuge in adversity.
That virtue was sufficient of herself for happiness.
One ought to seek out virtue for its own sake, without being influenced by fear or hope, or by any external influence. Moreover, that in that does happiness consist.
He said that men ought to remember those friends who were absent as well as those who were present.
Ignorance plays the chief part among men, and the multitude of words.
He used to say that other men lived to eat, but that he ate to live.
The market is a place set apart where men may deceive each other.
It was a common saying of Myson that men ought not to investigate things from words, but words from things; for that things are not made for the sake of words, but words for things.
Aristippus being asked what were the most necessary things for well-born boys to learn, said, Those things which they will put in practice when they become men.
On one occasion Aristotle was asked how much educated men were superior to those uneducated: As much, said he, as the living are to the dead.
When he was praised by some wicked men, he said, I am sadly afraid that I must have done some wicked thing.
The Stoics also teach that God is unity, and that he is called Mind and Fate and Jupiter, and by many other names besides.
The chief good is the suspension of the judgment, which tranquillity of mind follows like its shadow.
Another was, Watch your opportunity.