Source: On Mencius Teng Wengong: "Villages and fields are in the same well, and they are friends when they go in and out. They look out for each other and help each other through illness."

2.

The same lines converge, and thousands of miles follow each other; Whether the line is different or not, it won't work. -Huai Nanzi

3.

Simultaneous self-correspondence, mutual understanding. -Jin Fu Xuan

4.

The most important thing in life is to know yourself, and meet flesh and blood in all corners of the world. -Tang Li He

5.

White heads come to the same place, friends who never turn back, friends who never turn back, friends who never turn back. . .

6.

Is it a famous saying or an idiom?