There is but one way to tranquility of mind and happiness, and that is to account no external things thine own, but to commit all to God.

Reason is not measured by size or height, but by principle.

If you do not wish to be prone to anger, do not feed the habit; give it nothing which may tend to its increase. At first, keep quiet and count the days when you were not angry: "I used to be angry every day, then every other day: next, every two, then every three days!" and if you succeed in passing thirty days, sacrifice to the gods in thanksgiving.

I must die. I must be imprisoned. I must suffer exile. But must I die groaning? Must I whine as well? Can anyone hinder me from going into exile with a smile? The master threatens to chain me: what say you? Chain me? My leg you will chain--yes, but not my will--no, not even Zeus can conquer that.

What disturbs people's minds are not events but their judgments on events.

Survey and test a prospective action before undertaking it. Before you proceed, step back and look at the big picture, lest you act rashly on raw impulse.

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.