“老骥伏枥，志在千里”语出曹操《步出夏门行》，老马虽然卧在马槽子下，但它仍有行千里的志向。 用以比喻有志向的人虽然年老，仍有雄心壮志。

An old steed in the stable still aspires to gallop a thousand mils——Old people still cherish high aspirations. (Cao Cao)

老骥伏枥，志在千里；烈士暮年，壮心不已。

An old horse in the stable still aspires to gallop a thousand miles; a hero in his late years does not give up his lofty aspirations. or yet ancient steeds in stall that lie, dream of the leagues they ran; and heroes, though their doom is nigh, as ever play the man. or a veteran thoroughbred in the stable still dreams of the wilds; a man of action, though advanced in years, aspires after great exploits. (Cao Cao)