what is a youth

What is a youth? Impetuous fire.

青春是什么？浮躁的火。

Youth is a wonderful thing; what crime to waste it on children.

青春是美妙难再的东西,把它浪费在孩子身上, 岂非一大罪过.

L: Wow! Well, what about a youth hostel? Is there a youth hostel near the airport?

L：哇！那青年旅社呢？机场附近有青年旅舍吗？

The reason is that the strange and bitter miracle of life is nowhere else so evident as in our youth. And what is the essence of that strange and bitter miracle of life which we feel so poignant, so unutterable, with such a bitter pain and joy, when we are young?

因为在青春时代，生活充满了奇特而辛酸的不可思议的事.我们在青春年少时带着悲喜交集的心情，十分强烈而不可名状地感受到人生的奇特辛酸/不可思议的经历.其实质是什么呢？