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.