"A man must take with him into the world below an adamantine faith in truth and right, that there too he may be undazzled by the desire of wealth or the other allurements of evil... Let him know how to choose the middle way and avoid the extremes on either side...for this is the way of happiness."
- Socrates, in Plato's Republic
(Painting: "Socrates," by Luca Giordano, 17th cent.)