Life is like playing chess. If you make one mistake, you will lose everything. This is a sad thing; and life is not as good as playing chess. You cannot play another game or regret it. Life does not sell round-trip tickets. Once you leave, you can never come back. Growth is an experience, maturity is an experience. Everyone can grow, but not everyone can mature. "Mature people don't be ecstatic about gains and don't grieve over losses. They just accept it calmly after trying their best. Mature people don't become arrogant because of success and fame. They don't grovel because of being unknown. They keep an ordinary heart. , Live life neither humble nor arrogant. Mature people don’t ask about the past, smart people don’t ask about the present, and open-minded people don’t ask about the future.