Once Chairman Mao said one is never too old to learn, his famous words inspire people to keep learning all their lives. Since we are small, we study at school, then we have to learn until we are at college, after graduate from college, we finish our education in the school.Then the new stage comes, we start to work, making money, learning knowledge seems unnecessary to us. This is totally wrong, we learn all the time, even we are out of school, we have lessons from life. Life is a big topic, we have to learn it all the time. We have to deal with trouble, learning to make friends and accept fail. All these things we will not learn at school, we have to learn by ourselves, we are students and teachers. If you think you finish learning after school, you are narrow minded.