Have the wisdom to know what cannot be changed, and the strength to change what can.

Let no man think that he is loved by any who loveth none.

One that desires to excel should endeavor in those things that are in themselves most excellent.

The best place to get help is from yourself.

It is no easy thing for a principle to become a man's own unless each day he maintains it and works it out in his life.

Things themselves don't hurt or hinder us. Things simply are what they are. How we view these things is another matter.People think what they will think; it is of no concern to us.

If you want to improve, be content to be thought foolish and stupid with regard to external things. Don't wish to be thought to know anything; and even if you appear to be somebody important to others, distrust yourself. For, it is difficult to both keep your faculty of choice in a state conformable to nature, and at the same time acquire external things. But while you are careful about the one, you must of necessity neglect the other