老骥伏枥，志在千里。（曹操）

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

例句：老骥伏枥，志在千里。烈士暮年，壮心不已。

1. 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.

2. 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.

3. A veteran thoroughbred in the stable still dreams of the wilds; A man of action, though advanced in years, aspires after great exploits.