nāma-saṅkīrtanāc ca: one should chant the holy names of the Lord — Hare Kṛṣṇa, Hare Kṛṣṇa, Kṛṣṇa Kṛṣṇa, Hare Hare/ Hare Rāma, Hare Rāma, Rāma Rāma, Hare Hare — either individually or with others. Lord Caitanya has given special stress to chanting of these holy names of the Lord as the basic principle of spiritual advancement. Another word here…used here is ārjavena, meaning “without diplomacy.” A devotee should not make plans out of self-interest. Of course, preachers sometimes have to make some plan to execute the mission of the Lord under proper guidance, but regarding personal self-interest, a devotee should always be without diplomacy, and he should avoid the company of persons who are not advancing in spiritual life. Another word is ārya. Āryans are persons who are advancing in knowledge of Kṛṣṇa consciousness as well as in material prosperity. The difference between the Āryan and non-Āryan, the sura and asura, is in their standards of spiritual advancement. Association with persons who are not spiritually advanced is forbidden.
His HolinessJayapataka Swami Maharaj
1985, 1st October, SB class @ Bangalore, India