To realize the value of one year:

Ask a student who has failed a final exam.

To realize the value of one month: 

Ask a mother who has given birth to a premature baby. 

To realize the value of one week: 

Ask an editor of a weekly newspaper. 

To realize the value of one hour: 

Ask the lovers who are waiting to meet. 

To realize the value of one minute: 

Ask a person who has missed the train, bus or plane. 

To realize the value of one second: 

Ask a person who has survived an accident. 

To realaize the value of one millisecond: 

Ask the person who has won a silver medal in the Olympics. 

Time waits for no one.

Treasure every moment you have.

要想知道一年的价值

就去问期末考试不及格的同学

要想知道一个月的价值

就去问生那早产儿的母亲

要想知道一周的价值

就去问问周报的编辑

要想知道一小时的价值

就去问等待相会的恋人

要想知道一分钟的价值

那就去问问误了火车汽车或飞机的人

要想知道一秒的价值

就去问大难不死的人 

要想知道一毫秒的价值

就去问问奥运会获得银牌的人

时间不等人

你拥有的每一分每一秒都要珍惜