偶然看到一句话：Yesterday is History,Tomorrow is Mystery,Today is a gift, That's why we call it the present，便找到了这样一首诗……


Dear friends:

    To realize the value of ONE YEAR
    想知道一整年的价值
        ask the student who has failed a class
        就去问挂过科的学生


    To realize the value of ONE MONTH
    想知道一个月的价值
        ask a mother who gave birth to a premature baby
        就去问曾经早产的母亲


    To realize the value of ONE WEEK
    想知道一个礼拜的价值
        ask the editor of a