Here are some quotes about self-control:

- “You have power over your mind - not outside events. Realize this, and you will find strength.” ― Marcus Aurelius, Meditations
- “The best fighter is never angry.” ― Lao Tzu
- “To handle yourself, use your head; to handle others, use your heart.” ― Eleanor Roosevelt
- “Self-control is strength. Right thought is mastery. Calmness is power.” ― James Allen
- “Self-reverence, self-knowledge, self-control; these three alone lead life to sovereign power.” ― Alfred Lord Tennyson

I hope these quotes help you in some way.