很喜欢凯瑟琳的这首诗，不是因为最后一句曾出现在《功夫熊猫》的台词里，还是句子真的很朴实，句句打动人心。曾经很喜欢罗伯特的诗，词藻的生动，押韵，更是会让我在不同的年龄段都会有不同的体会。凯瑟琳的作品不像罗伯特那么生动，但绝对是能打动你心，在心灵深处留下深深的烙印。

To realize the value of ONE YEAR, ask a student who failed a grade.

To realize the value of ONE MONTH, ask a mother who gave birth to
a premature baby.

To realize the value of ONE WEEK, ask the 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 missed the
train.

To realize the value of ONE SECOND, ask a person who just avoided
an accident.

To realize the value of ONE MILLISECOND, ask the person who won a silver medal in the Olympics.

Treasure every moment that you have! And treasure it more because
you shared it with someone special, special enough to spend your time.
And remember that time waits for no one. Yesterday is history.
Tomorrow is mystery. Today is a gift.
That's why it's called the present!!