"It is not greed that drives the world, but envy." --Warren Buffett
"The idea of caring that someone is making money faster [than you] is one of the deadly sins. Envy is a really stupid sin because it’s the only one you could never possibly have any fun at. There’s a lot of pain and no fun. Why would you want to get on that trolley?" --Charlie Munger
"Almost all the parts of our bodies require some expense. The feet demand shoes, the legs stockings, the rest of the body clothing, and the belly a good deal of victuals. Our eyes, though exceedingly useful, ask when reasonable, only the cheap assistance of spectacles, which could not much impair our finances. But the eyes of other people are the eyes that ruin us." --Benjamin Franklin (via A Benjamin Franklin Reader)