False language, evil in itself, infects the soul with evil.

When you propose ridiculous things to believe, too many men will choose to believe nothing at all.

The more I know, the more I know that I don't know.

One should never do wrong in return, nor mistreat any man, no matter how one has been mistreated by him.

The only true wisdom is in knowing you know nothing.

The really important thing is not to live, but to live well. And to live well meant, along with more enjoyable things in life, to live according to your principles.

The real danger in life is not death, but living an evil life.