Lost time can not be found again.what we say enough time often proves little enough.Yes, it is true indeed.So I could not help getting a sense of regret when I realize some of my valuable time in this summer had been wasted in doing something which ,though,could bring me temporary excitement yet,looking back,seemed of no value at all.
    I remember one of my teachers of my elementary school once said success always comes to those who are well prepared in time.At that time, without the heavy study burden pressing on my shoulders,and with the naive experience in life ,I didn't take it seriously.I simply reckoned it as a normal proverb that teachers often used to teach their naughty little boys and girls.
     Now,as an college student, I  learned the meaning of the sentence to a deeper extent by experiencing the intense competition among the college students. The so-called good students are ,without any exceptions,those who can manage to value their limited time and assign them to study individually in the way that can accommodate their class schedule. If we want to success in college life, we must learn to value time.And learning to value time and assign them efficiently brings us  success not only in school but also  in the later social life. In fact,do you ever feel that our time is really limited?
     Our youth is not like a garment ,which we can keep green by wearing sparingly.Our youth ,while you have it, must wear daily,since it will wear away fairly soon.
How many youth do we have? Only one. Youth is a period for us to struggle,study.Let us value time and do as much as we could in our youth, leaving nothing regrettable behind.