1. Youth is a blunder; manhood a struggle, old age a regret.

    青年冒失莽撞；成年发奋图强；老年遗憾懊丧。

    2. Youth is life's seed-time.

    青年时代是人生的播种期。

    3. Youth is the season of hope, enterprise, and energy, to a nation as well as an individual.

    青年时期对国家和个人都是希望、创业和精力充沛的时期。

    4. Youth looks forward and age backward.

    青年人向前看，老年人向后看。

    5. Youth means limitless possibilities.

    年轻意味着无限希望。

    6. Young man may die but old men must die.

    年轻人可能会死，老年人难免不亡。

    7. Years bring wisdom.

    年长智也增。

    8. Yesterday is dead, forget it; tomorrow does not exist, don't worry; today is here, use it.

    昨天已经消逝，把它忘掉；明天还未来到，不必烦恼；今天就在眼前，把它用好。

    9. You can fool some of the people all the time, and all of the people some of the time; but you can't fool all of the people all the time.

    你可以一直愚弄一些人，甚至可以在某个时期愚弄所有的人；但不能一直愚弄所有的人。

    10.You are the greatest enemy if you are a coward, but if you are brave, you are your greatest friend.

    如果你是胆小鬼，你就是自己最大的敌人；如果你是勇敢者，你就是自己最好的朋友。liuxuepaper.com