To hold the same views at forty as we held at twenty is to have been stupefied for a score of years, and take rank, not as a prophet, but as an unteachable brat, well birched and none the wiser.
四十岁还持有二十岁时同样的见解,就如同浑浑噩噩地过了二十年;这样的人算不上先知,倒像个教不会的孩子,挨了不少教训,却一点也没变聪明。
— Robert Louis Stevenson · Virginibus Puerisque, and Other Papers · Crabbed Age and Youth —