A short, finished list rather than an endless feed: 100 of the best finance quotes ever written, picked out of the full finance archive on QuoteForever. You will find Merton Miller, Honore De Balzac, Milton Friedman and Richard Wagner 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.
To beat the market you'll have to invest serious bucks to dig up information no one else has yet.
What we now call "finance" is, I hold, an intellectual perversion of what began as warm human love.