[M]ere knowledge of the truth will not give you the art of persuasion.

I have this tattooed on my left side! I love the saying and it's a perfect description of Karma, don't judge/discriminate and don't do to someone what you wouldn't want done to you.

Anything worth knowing is already known and must be remembered and reclaimed by the soul.

He who is learning and learning and doesn't apply what he knows is like the one who is plowing and plowing and doesn't seed.

Wealth and poverty; one is the parent of luxury and indolence, and the other of meanness and viciousness, and both of discontent.

They do certainly give very strange, and newfangled, names to diseases.

Knowledge which is acquired under compulsion obtains no hold on the mind.