青春的英文原文是「Youth is not a time of life; it is a state of mind; it is not a matter of rosy cheeks, red lips and supple knees; it is a matter of the will, a quality of the imagination, a vigor of the emotions; it is the freshness of the deep springs of life.」
這段話強調青春不僅僅是關於外貌的年輕，而是一種內心的狀態，是一種堅定的意志、豐富的想像力和強烈的情感的表現。青春意味著一種對生活深深的熱愛和對未來的無限憧憬。