What is needful? Righteousness and sacred learning and teaching; truth and sacred learning and teaching; meditation and sacred learning and teaching; self-control and sacred learning and teaching; peace and sacred learning and teaching; ritual and sacred learning and teaching; humanity and sacred learning and teaching. §
Kṛishṇa Yajur Veda, Taittarīya Upanishad 1.9. UPM, P. 109§