The essence of good and evil is a certain disposition of the will.

On the occasion of every accident that befalls you, remember to turn to yourself and inquire what power you have for turning it to use.

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

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

Do nothing in a depressed mood, nor as one afflicted, nor as thinking that you are in misery, for no one compels you to that.

The two powers which in my opinion constitute a wise man are those of bearing and forbearing.

What matters most is what sort of person you are becoming. Wise individuals care only about whom they are today and who they can be tomorrow.