Evelyn Waugh said this quote
“ The langour of Youth - how unique and quintessential it is! How quickly, how irrecoverably, lost! The zest, the generous affections, the illusions, the despair, all the traditional attributes of Youth - all save this come and go with us through life...These things are a part of life itself; but languor - the relaxation of yet unwearied sinews, the mind sequestered and self-regarding, the sun standing still in the heavens and the earth throbbing to our own pulse - that belongs to Youth alone and dies with it. ”