● Young man may die but old men must die. 年轻人可能会死，老年人难免不亡。
● You roll my log and I'll roll yours. 互相吹嘘。
● 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。
● Youth is life's seed-time. 青年时代是人生的播种期。
● 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。
● Youth looks forward and age backward. 青年人向前看，老年人向后看。
● Youth means limitless possibilities. 年轻意味着无限希望。
● Zeal without knowledge is fire without light. 有热情而无知识，犹如有火焰而无光芒。
● 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。
● Yesterday will not be called again. 光阴一去不复返。
● 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。
● You can do more than strike while the iron is hot; you can make the iron hot by striking. 铁热时，你能做的不止是锤打，而锤打可使铁热。
● 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。