David

“Do not do to others what angers you if done to you by others.”
― Socrates

“To find yourself, think for yourself.”
― Socrates

“Let him who would move the world first move himself.”
― Socrates

“Esteemed friend, citizen of Athens, the greatest city in the world, so outstanding in both intelligence and power, aren't you ashamed to care so much to make all the money you can, and to advance your reputation and prestige--while for truth and wisdom and the improvement of your soul you have no care or worry?”
― Socrates