To realise the value of one year,
Ask a student who failed a grade

To realise the value of one month,
Ask the mother of premature baby

To realise the value of one week,
Ask the editor of a weekly magazine

To realise the value of one day,
Ask the person who doesn't get even a single meal

To realise the value of one hour,
Ask the student who writes a test

To realise the value of one minute,
Ask the person who missed the train

To realise the value of one second,
Ask the person who escaped a miraculous accident

To realise the value of one milli second,
Ask the person who won gold medal in olympics