老骥伏枥（老驥伏櫪）　

◎ 老骥伏枥 lǎojì-fúlì

[able men tied down to a routine post;ambition survives even in old age like the old steed in the stable that still wants to gallop a thousand li ] 三国魏·曹操《步出夏门行》:“老骥伏枥,志在千里。烈士暮年,壮心不已。”(烈士:有志功业的人)比喻年已老但雄心壮志不减当年