youth is a blunder; manhood a struggle, old age a regret. 青年冒失莽撞;成年發(fā)奮圖強;老年遺憾懊喪。

　　youth is life's seed-time. 青年時代是人生的播種期。

　　youth is the season of hope, enterprise, and energy, to a nation as well as an individual. 青年時期對國家和個人都是希望、創(chuàng)業(yè)和精力充沛的時期。

　　youth looks forward and age backward. 青年人向前看，老年人向后看。

　　youth means limitless possibilities. 年輕意味著無限希望。

　　it is better to waste one's youth than to do nothing with it at all.

　　——george courteline (1858-1926)

　　年輕時做一點兒事要比什么事也不做好。

　　——喬治·庫特林

　　a generation without a cause in its youth has no legacy in its old age. eeward kennedy. american plliticia 一代人如果年輕時候沒有事業(yè),老了就不會有遺產(chǎn)可以傳下去。 美國政治家肯尼迪.

　　youth is more courageous than age because it knows less. age is wiser than youth because it knows more.

　　青年人比老年人勇氣大，因為他們知道的比較少。老年人比青年人明智，因為他們知道的較多。——w.e.b.dubois