(Click photo to see a larger image of Srila Prabhupada giving class.)
"The secret of success in the cultivation of Krishna consciousness is hearing from the right person."
(Srimad-Bhagavatam 4.29.39-40, Purport)
"The process of hearing from a pure devotee is recommended in all Vedic scriptures, especially by Lord Caitanya Mahaprabhu. One may stay in his position of life -- it does not matter what it is -- but if one hears from the mouth of a pure devotee, he gradually comes to the understanding of his relationship with the Lord and thus engages in His loving service, and his life becomes completely perfect. Therefore, this process of hearing from the mouth of a pure devotee is very important for making progress in the line of spiritual understanding."
(Srimad-Bhagavatam 4.20.25, Purport)
"In this age it is very difficult to follow thoroughly the regulative principles and studies of the Vedas which were formerly recommended. However, if one gives aural reception to the sound vibrated by great devotees and acaryas, that alone will give him relief from all material contamination. Therefore it is the recommendation of Caitanya Mahaprabhu that one should simply hear from authorities who are actually devotees of the Lord. Hearing from professional men will not help. If we hear from those who are actually self-realized, then the nectarean rivers, like those which are flowing on the moon planet, will flow into our ears."
(Nectar of Devotion, Chapter 10)