Bhagavad Gita Chapter 18.42
śamo damas tapaḥ śaucaḿ
kṣāntir ārjavam eva ca
jñānaḿ vijñānam āstikyaḿ
brahma-karma svabhāva-jam
Translation
Peacefulness, self-control, austerity, purity, tolerance, honesty, knowledge, wisdom and religiousness—these are the natural qualities by which the brahmanas work.