Srila Prabhupada’s Letter to Yamuna 11/18/70:
“Regarding the Gaudiya Math, our position has nothing to do with them. They cannot do anything and if somebody does something, they will be envious. That is the nature of third class men.”
Srila Prabhupada’s Letter to Gurudasa 8/29/72:
“Do not be depressed. All along my godbrothers gave me only depression, repression, compression–but I continued strong in my duty. So never mind there is some discouragement, continue with your work in full enthusiastic Krishna Consciousness attitude of service.”
Srila Prabhupada’s Letter to Niranjana 5/21/73:
“Our big, big godbrothers in India, they could not preach Lord Gauranga’s name all over India. They are simply inclined to criticize me, that my students call me Prabhupada. They could not do anything practical and tangible. They are satisfied with a temple and a few disciples begging alms for the maintenance of the temple.
“So, we can understand that they have all become sudras. How can they have interest in Bhagavad-gita. Although some of them have been born in brahmana families, but by quality are all sudras.”
