Not to unlearn what you have learned is the most necessary kind of learning.
As iron is eaten away by rust, so the envious are consumed by their own passion.
As rust corrupts iron, so envy corrupts man.
Quarrels often arise in marriages when the bridal gifts are excessive.
The advantages of philosophy? That I am able to hold converse with myself.
There are only two people who can tell you the truth about yourself - an enemy who has lost his temper and a friend who loves you dearly.