If you are to be kept right, you must possess either good friends or red-hot enemies. The one will warn you, the other will expose you.

I am Diogenes the Dog. I nuzzle the kind, bark at the greedy and bite scoundrels.

It takes a wise man to discover a wise man.

There is only a finger's difference between a wise man and a fool.

Man is the most intelligent of the animals - and the most silly.

I do not know whether there are gods, but there ought to be.

We have complicated every simple gift of the gods.