No one does wrong voluntarily.

The examined life is the only life worth living.

Beauty comes first. Victory is secondary. What matters is joy.

I have not sought during my life to amass wealth and to adorn my body, but I have sought to adorn my soul with the jewels of wisdom, patience, and above all with a love of liberty.

The understanding of mathematics is necessary for a sound grasp of ethics.

And the same things look bent and straight when seen in water and out of it, and also both concave and convex, due to the sight's being mislead by the colors, and every sort of confusion of this kind is plainly in our soul. And, then, it is because they take advantage of this affection in our nature that shadow painting, and puppeteering, and many other tricks of the kind fall nothing short of wizardry.

How can you wonder your travels do you no good, when you carry yourself around with you?