On Control

Any person capable of angering you becomes your master.

— Epictetus

Attributed

Remember, it is not enough to be hit or insulted to be harmed, you must believe that you are being harmed.

— Epictetus

Enchiridion 20

There is but one way to tranquility of mind and happiness: let this be, morning, noon, and night, your thought.

— Epictetus

Discourses 4.4.39

One should eat to live, not live to eat.

— Musonius Rufus

Lectures 18b

Not to be ashamed of self-restraint is itself a great virtue.

— Musonius Rufus

Lectures 12

The wise man is not subject to passions.

— Chrysippus

Fragment, in Diogenes Laertius 7.117

Passions are mistaken judgments.

— Chrysippus

Fragment, in Diogenes Laertius 7.111

He who yields to his passions is not free.

— Zeno of Citium

Fragment, in Stobaeus

An angry man opens his mouth and shuts his eyes.

— Cato the Younger

Attributed, via Plutarch, Sayings of the Romans

Let us not give ear to those who maintain that we should be angry with our enemies.

— Cato the Younger

via Cicero, On Old Age