Diogenes Laertius

We have two ears and only one tongue in order that we may hear more and speak less.

The mob is the mother of tyrants.

Democritus says, "But we know nothing really; for truth lies deep down."

When Thales was asked what was difficult, he said, "To know one's self." And what was easy, "To advise another."

Solon used to say that speech was the image of actions;... that laws were like cobwebs, --for that if any trifling or powerless thing fell into them, they held it fast; while if it were something weightier, it broke through them and was off.

Chilo advised, "not to speak evil of the dead."

He used to say that it was better to have one friend of great value than many friends who were good for nothing.

He said that there was one only good, namely, knowledge; and one only evil, namely, ignorance.

Time is the image of eternity.

Aristotle was once asked what those who tell lies gain by it. Said he, "That when they speak truth they are not believed."

The question was put to him, what hope is; and his answer was, "The dream of a waking man."

Bury me on my face, said Diogenes; and when he was asked why, he replied, Because in a little while everything will be turned upside down.

All things are in common among friends.

I am a citizen of the world.

It takes a wise man to discover a wise man.

Nothing can be produced out of nothing.