By accepting life's limits and inevitabilities and working with them rather than fighting them, we become free.
It is impossible for a man to learn what he thinks he already knows.
Bear in mind that you should conduct yourself in life as at a feast.
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.
Confident because of our caution
In a word, neither death, nor exile, nor pain, nor anything of this kind is the real cause of our doing or not doing any action, but our inward opinions and principles.