Yonah ben Abraham Gerondi, known as Yonah of Gerona and Rabbenu Yonah

There are two main benefits from suffering. It serves as an atonement for transgressions, and as an incentive for us to improve our behavior. When you improve because of your suffering, appreciate the suffering since you have gained immensely because of it.

Love your critics and hate your flatterers.

Wisdom is the ability to do good and abandon sin.