Bhagavad-gītā 18.31

yayāby which — by which; dharmamthe principles of religion — the principles of religion; adharmamirreligion — irreligion; caand — and; kāryamwhat ought to be done — what ought to be done; caalso — also; akāryamwhat ought not to be done — what ought not to be done; evacertainly — certainly; caalso — also; ayathāimperfectly-vatimperfectly — imperfectly; prajānātiknows — knows; buddhiḥintelligence — intelligence; sāthat — that; pārthaO son of Pṛthā — O son of Pṛthā; rājasīin the mode of passion — in the mode of passion.