As the saying goes, "a tree without roots is not long, and a man without ambition will not stand." As the saying goes, a tree without roots is not long, which makes people understand that if you want to make the road of life more stable, you must lay a solid foundation. Just like the foundation in a building, only by laying a good foundation can the building be stable. The next sentence is about the principle of life. That is, people should have determination and lofty aspirations. People who have no ambition will not succeed.