śamo damas tapaḥ śaucaṁ kṣāntir ārjavam eva ca
jñānaṁ vijñānam āstikyaṁ brahma-karma svabhāva-jam
“Peacefulness, self-control, austerity, purity, tolerance, honesty, knowledge, wisdom and religiousness—these are the natural qualities by which the brāhmaṇas work.” – (Bhagavad Gita 18.42) Srila Prabhupada would always recommend that we have to select a brāhmaṇa by the symptoms of his life, not that because he is born of a brāhmaṇa family he remains a brāhmaṇa. No. He must continue the brahminical qualification as explained in the above mentioned verse. He will always address such people as sadācāra-sampanna-vaiṣṇava. In a lecture on Srimad Bhagavatam on September 17, 1969 in London, Srila Prabhupada said that, “
Sādhava means sadācāra, clean habits. A mahātmā cannot be implicated with those four principles of sinful life. That is the first test. No illicit sex life, no gambling, no meat-eating, and no intoxication. This is called sadācāra, clean habit. Anything beyond this: unclean habit. Here it is stated, sādhava. Sādhava means sadācāra, clean habit.” At Bhaktivedanta Vidyapitha, students are trained not to become scholars but sincere and civilized individuals.
Thus by rising early in the morning, taking bath, attending maṅgala-ārātrika, and chanting Hare Kṛṣṇa mantra, reading scriptures, Vedic literature, and then honoring prasādam with devotees, engaging in various services, sadacara is inculcated in the students. Sadacara is to be always engaged with some prescribed duty for Kṛṣṇa consciousness.