First learn the meaning of what you say, and then speak.

Other people's views and troubles can be contagious. Don't sabotage yourself by unwittingly adopting negative, unproductive attitudes through your associations with others.

There is only one way to happiness and that is to cease worrying about things which are beyond the power of our will.

People are not disturbed by things, but by the view they take of them.

Control thy passions lest they take vengence on thee.

Whoever wants to be free, therefore, let him not want or avoid anything that is up to others. Otherwise he will necessarily be a slave.

Confidence in nonsense is a requirement for the creative process.