Katharine Sun

    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.