Courage is the mother of all virtues because without it, you cannot consistently perform the others.

Teachers, who educate children, deserve more honour than parents, who merely gave them birth; for the latter provided mere life, while the former ensure a good life.

All food must be capable of being digested, and that what produces digestion is warmth; that is why everything that has soul in it possesses warmth.

For contemplation is both the highest form of activity (since the intellect is the highest thing in us, and the objects that it apprehends are the highest things that can be known), and also it is the most continuous, because we are more capable of continuous contemplation than we are of any practical activity.

He who has never learned to obey cannot be a good commander.

Yellow-colored objects appear to be gold

When the looms spin by themselves, we'll have no need for slaves.