Learning without thought is labor lost; thought without learning is perilous.

The injury of prodigality leads to this, that he who will not economize will have to agonize.

Those who do not study are only cattle dressed up in men's clothes.

Learn as though you would never be able to master it; hold it as though you would be in fear of losing it.

True goodness springs from a man's own heart. All men are born good.

Not to converse with a man worthy of conversation is to waste the man. To converse with a man not worthy of conversation is to waste words. The wise waste neither men nor words.

Let a man be stimulated by poetry, established by the rules of propriety, and perfected by music.