na satyaṁ teṣu vidyate

pravrttim-proper action; ca-also; nivrttim-improper action; ca-and; janah-persons; na-never; viduh-know; asurah-in demoniac quality; na-never; saucam-cleanliness; na-nor; api-also; ca-and; acarah-behavior; na-never; satyam-truth; tesu-in them; vidyate-there is.