Time is the most valuable for people, because you can never own it again after it goes. When I was little child, my parents always told me that I should tresure my time. However, I seldom trusted in them because I thought that I just a little kid and I have plenty of time. But after I went to middle school, I changed my view. I spend all the day in school, having classes, and after class, I have to spend some time in study. That is to say, I do not have much time to play. Therefore, I realize that time is valuable and I should make a good plan for my life, so that I can live a rich life.