It means:
Be a man, don't forget the truth of being a man, and don't do things that hurt the world.
Don't be rich and powerful, don't be extravagant, remember the hardships and poverty in the past, don't forget your own ambitions, don't forget that your hometown has become the home of a big city, and don't forget your parents. This is called not forgetting your roots.
The famous saying that you can't forget your roots:
Accept a drop of water when necessary, and I will repay your kindness with spring water.
A tree is high in thousands of feet, but it never forgets its roots.
When drinking water