出处：按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第110页（267字）
比喻年纪虽老而壮志未衰，例“老骥伏枥，志在千里”是曹操晚年时的豪言壮语，闻者亦当以此自勉。
We should all be motivated when we hear Cao Cao’s brave words：“Lofty aspirations arc not stilled by old age，”which was written in a poem during the late years of his life．