Prabhupada Letters :: 1968.

"I am very happy to learn that you are going to various homes and lecture halls, and holding kirtana and delivering lectures from these transcendental literature. Continue to preach in this way to all you meet."

Prabhupada Letters :: 1969.

"We cannot demand from Krishna to know about Him. When you actually learn to serve Him, He reveals Himself. Knowledge means to know Him, and success means to please Him. And how Krishna is pleased, that can be known through the transparent medium of His confidential servant."