Bhagwad Gita
Chapter 18, Verse 42
शमो दमस्तपः शौचं क्षान्तिरार्जवमेव च।ज्ञानं विज्ञानमास्तिक्यं ब्रह्मकर्म स्वभावजम्।।18.42।।
Peacefulness, self-control, austerity, purity, tolerance, honesty, wisdom, knowledge, and religiousness-these are the qualities by which the brahmanas work.