divā ca vyartha-karmabhiḥ

mandasya-of the lazy; manda-paltry; prajnasya-of intelligence; vayah-age; manda-short; ayusah-of duration of life; ca-and; vai-exactly; nidraya-by sleeping; hriyate-passes away; naktam-night; diva-daytime; ca-also; vyartha-for nothing; karmabhih-by activities.