Bhagavad Gita
18.42

शमो दमस्तपः शौचं क्षान्तिरार्जवमेव च | ज्ञानं विज्ञानमास्तिक्यं ब्रह्मकर्म स्वभावजम् ||

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

Translation

Serenity, self-restraint, austerity, purity, forgiveness, uprightness, knowledge, wisdom, and belief in a supreme principle — these are the natural duties of a Brahmana.

Interpretation

The Brahmana's natural function: serenity (shama — mind-stillness), sense-restraint (dama), austerity (tapas), purity, forgiveness (kshanti — the ability to absorb offense without resentment), uprightness (arjava), scriptural knowledge (jnana — the theoretical), experiential wisdom (vijnana — the lived understanding), and astikya (faith in the Absolute). These qualities naturally arise in consciousness dominated by sattva and oriented toward the transcendent. The Brahmana function — the teaching and priestly function — serves the whole of society by maintaining the connection to the sacred.