After the spring dries up; Zhuangzi>

When the spring dries up, the two fish live together day and night. The fish are on land, licking each other to get wet, and soaking each other with foam. It is better to forget each other in the rivers and lakes.

——Zhuangzi

There is a story in "Zhuangzi" in "The Great Master". He was finally trapped in a small depression on the land, and the two fish could not leave in time. This sentence comes from <