Only the educated are free.

"What concerns me is not the way things are, but rather the way people think things are."

First say to yourself what you would be; and then do what you have to do.

The greater the difficulty the more glory in surmounting it. Skillful pilots gain their reputation from storms and tempests.

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