The unexamined life is not worth living.

I only wish that ordinary people had an unlimited capacity for doing harm; then they might have an unlimited power for doing good.

The years wrinkle our skin, but lack of enthusiasm wrinkles our soul.

Fame is the perfume of heroic deeds.

If we pursue our habit of eating animals, and if our neighbour follows a similar path, will we need to go to war against our neighbour to secure greater pasturage, because ours will not be enough to sustain us, and our neighbour will have a similar need to wage war on us for the same reason.

Regard your good name as the richest jewel yoou can possibly be possessed of.

If a man is proud of his wealth, he should not be praised until it is known how he employs it.