Some people say that there are two cups of water that must be drunk in life, one is bitter water and the other is sweet water, and no one can avoid it. The difference is that different people drink sweet water and bitter water in different orders. Successful people often drink bitter water first and then sweet water; while ordinary people drink sweet water first and then bitter water. In the process of success, perseverance is very important. When facing setbacks, tell yourself: persist, try again. ——"Never Give Up"