Crow and heron, goose and crow. And fish.
“Now, about what it means to realize conclusively that what is unborn and marvelously illuminating is truly the Buddha Mind: Suppose ten million people got together and unanimously declared that a crow was a heron. A crow is black, without having to be dyed that way, just as a heron is white—that’s something we always see for ourselves and know for a fact. So even if, not only ten million people, but everyone in the land were to get together and tell you a crow was a heron, you still wouldn’t be fooled, but remain absolutely sure of yourself. That’s what it means to have a conclusive realization. Conclusively realize that what is unborn is the Buddha Mind and that the Buddha Mind is truly unborn and marvelously illuminating, and everything will be perfectly managed with the Unborn, so that, whatever people try to tell you, you won’t let yourself be fooled by them. You won’t accept other people’s delusions.”
“You, Sir, if you want to stop everything below Heaven losing its original simplicity, you must travel with the wind and stand firm in Virtue. Why do you exert yourself so much, banging a big drum and hunting for a lost child? The snow goose doesn’t need a daily bath to stay white, nor does the crow need to be stained every day to stay black. Black and white comes from natural simplicity, not from argument. Fame and fortune, though sought after, do not make people greater than they actually are. When the waters dry up and the fish are stranded on the dry land, they huddle together and try to keep each other moist by spitting and wetting each other. But wouldn’t it be even better if they could just forget each other, safe in their lakes and rivers?”
Book of Chuang Tzu