What is learned without pleasure is forgotten without remorse.
Let no man think that he is loved by any who loveth none.
Keep your attention focused entirely on what is truly your own concern, and be clear that what belongs to others is their business and none of yours.
Seek not good from without; seek it within yourselves, or you will never find it.
As a man, casting off worn out garments taketh new ones, so the dweller in the body, entereth into ones that are new.
What disturbs people's minds are not events but their judgments on events.