鞭长莫及

lit. the whip cannot reach (idiom); beyond one's influence / too far to be able to help

length / long / forever / always / constantly

chief / head / elder / to grow / to develop / to increase / to enhance

and / to reach / up to / in time for

surname Mo

do not / there is none who

whip or lash / to flog / to whip / conductor's baton / segmented iron weapon (old) / penis (of animal, served as food)