Hope does not matter whether there is something or not. The meaning of this sentence is: ① Hope is ethereal, invisible and intangible. ②The existence of hope depends on practice: without practice, hope means no hope; if you dare to practice, hope can become reality. ③The existence of hope depends on the ideal: if there is an ideal, there is hope; if there is no ideal, there is no hope. ④Hope is volatile: as objective reality changes, original hopes may come to naught, and hopes that did not exist before may arise. This is just like the road on the earth; in fact, there is no road on the earth, but when more people walk on it, it becomes a road. The meaning of this sentence is: ① The road on earth was blazed by predecessors, and subsequent generations must follow the path opened by their predecessors. ②The road on earth is made by everyone, and everyone should walk together. ③The road on earth does not matter whether it exists or not; if there are people walking on it, there will be a road; if no one walks on it, there will be no road. ④The presence or absence of hope is just like the road on earth. If you work hard to practice, you will have hope. If you don’t practice, there will be no hope.