It means: no matter how high the tree grows, the fallen leaves will still return to the roots. No matter how long you leave your hometown, you will eventually return to your hometown. Metaphor things always have a certain destination. People who leave home will eventually return to their hometown.

2. A tree has no roots and doesn't grow long, and a man can't stand without ambition. Common saying.

It means: if a tree loses its roots, it will never grow again, and people will not achieve much without ambition. This tells us that ambition is like a tree root. The deeper the roots, the bigger the tree. So do people. Only when you have great ambitions can you achieve great things.

3, a hundred feet, go further. ? Source: "Jingdezhen Dengchuan Record" Author: Songshi Daoyuan.

It means that knowledge, achievements, etc have reached a high level. Continue to work hard and strive for greater progress.

A single spark can start a prairie fire. A single spark can start a prairie fire by Mao Zedong.

A single spark can set fire to a large area of leaves. Metaphor is a new thing, which is very small at first, but it has great development prospects.

5, near Zhu Zhechi, near the ink is black. From: Fu Xuan's The True Prince of Shaofu.

It means: vermilion turns red and ink turns black, which means that being close to good people can make people better, and being close to bad people can make people worse. Refers to the objective environment has a great influence on people.

6, nine Niu Yi Mao, thousands of miles away. From: Interpretation of the Book of Rites

It means: a small mistake will lead to a big mistake.