If anyone is unhappy, remember that his unhappiness is his own fault... Nothing else is the cause of anxiety or loss of tranquility except our own opinion.
If you desire to be good, begin by believing that you are wicked.
The essence of good and evil is a certain disposition of the will.
Know, first, who you are, and then adorn yourself accordingly.
Contentment, as it is a short road and pleasant, has great delight and little trouble.
Know you not that a good man does nothing for appearance sake, but for the sake of having done right?