To realize the value of a sister or brother: Ask someone who doesn't have one.
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.
To realize The value of one millisecond:
Ask the person who has won a silver medal in the Olympics.
To realize the value of a friend or family member:
LOSE ONE.