To realize the value of a sister/brother: Ask someone who doesn't have one.
To realize the value of ten years: Ask a newly divorced couple.
To realize the value of four years: Ask a graduate.
To realize the value of one year: Ask a student who has failed a final exam.
To realize the value of nine months: Ask a mother who gave birth to a stillborn.
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 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.
Time waits for no one. Treasure every moment you have.