Live not as though there were a thousand years ahead of you. Fate is at your elbow; make yourself good while life and power are still yours.

Give full attention and devotion to each act.

Never let the future disturb you. You will meet it, if you have to, with the same weapons of reason which today arm you against the present.

If anyone can refute me-show me I'm making a mistake or looking at things from the wrong perspective-I'l l gladly change. It's the truth I'm after, and the truth never harmed anyone. What harms us is to persist in self-deceit and ignorance.

I was once a fortunate man but at some point fortune abandoned me. But true good fortune is what you make for yourself. Good fortune: good character, good intentions, and good actions.

We are born for cooperation

To understand the true quality of people, you must look into their minds, and examine their pursuits and aversions.