A short, finished list rather than an endless feed: 100 of the best health quotes ever written, picked out of the full health archive on QuoteForever. You will find Frederick Lenz, Henry David Thoreau, Francois De La Rochefoucauld and Deepak Chopra among them.
Read the list top to bottom, or use it as a starting point - every author name links to everything else they said, and every quote has its own page you can share or turn into an image.