As iron is eaten away by rust, so the envious are consumed by their own passion. Antisthenes on jealousy
Not to unlearn what you have learned is the most necessary kind of learning. Antisthenes on learning
The most useful piece of learning for the uses of life is to unlearn what is untrue. Antisthenes on learning
Quarrels often arise in marriages when the bridal gifts are excessive. Antisthenes on marriage
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. Antisthenes on truth
Observe your enemies, for they first find out your faults. Antisthenes on enemy
As iron is eaten by rust, so are the envious consumed by envy. Antisthenes on envy