"Almost all of us want to be richer than we are, even if we are very rich indeed. To be sure, there are exceptions; saints, ascetics, those who travel light and will not add even the weight of a wallet, a few whose material ambitions are fully satisfied and who therefore truly want nothing further. But the rest of us want more than we have, and the specially thoughtful sometimes wonder whether there could ever come a time when we didn't. The crucial question, though, leaving out of consideration the exempted categories, is: what are we willing to do to increase our wealth?"