A short, finished list rather than an endless feed: 56 of the best unconditional love quotes ever written, picked out of the full unconditional love archive on QuoteForever. You will find Jazz Jennings, Esther Hicks, Zig Ziglar and Greg Boyle 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.