Chapter 18: Sloka 42

18.42

śamo damas tapaḥ śaucaṁ
kṣāntir ārjavam eva ca
jñānaṁ vijñānam āstikyaṁ
brahma-karma svabhāva-jam

śamaḥ—peacefulness; damaḥ—self-control; tapaḥ—austerity; śaucam—purity; kṣāntiḥ—tolerance; ārjavam—honesty; eva—certainly; ca—and; jñānam—wisdom; vijñānam—knowledge; āstikyam—religiousness; brahma—of a brāhmaṇa; karma—duty; svabhāva-jam—born of his own nature.

Peacefulness, self-control, austerity, purity, tolerance, honesty, wisdom, knowledge, and religiousness—these are the qualities by which the brāhmaṇas work.