everyone has his ownunderstanding of young,it is a period of time of beauty and wonders,only after you have
experienced the sour ,sweet ,bitter and salty can you really become a person of significance.thre time of young is limitted,it may paby without your attention,and when you discover what has happened ,it is always too late.grasping the young well means a better time is waiting for you in the near future,or the situation may be opposite .
having a view on these great men in the history of hunmanbeing,they all made full use of their youth time ,to do things that are useful to society,to the whole mankind,and as a cosquencyanjianggao/e ,they are remembered by later
