Frugality is founded on the principle that all riches have limits.
I eat only what is enough to sustain my life. My food is bread, soup, an egg, and a little meat. And the amount I eat is no more than my body can easily digest.
Simplicity, simplicity, simplicity! I say, let your affairs be as two or three, and not a hundred or a thousand; instead of a million count half a dozen, and keep your accounts on your thumb-nail.