(Kasturika, Saradiya and Lilasukha devi dasis collating Prabhupada's books, Boston, 1969)
"A sincere worker is always recognized by Krishna."
(Srila Prabhupada Letter, December 31, 1967)
"You are a very sincere worker, and Krishna will bless you."
(Srila Prabhupada Letter, March 19, 1970)
"You are very sincere worker and I am sure Krishna will give you the required strength for this preaching work."
(Srila Prabhupada Letter, March 15, 1969)
"Because you are sincere worker Krishna is dictating from within yourself as He has promised in the Bhagavad Gita, and things are coming so nicely. May Krishna grace you more and more and in your advance service of Krishna Consciousness. You have very nicely stated that I am your life. This means you are my body and so neither life nor body can be separated because on the spiritual platform there is no such distinction. On material platform sometimes life is separated from body, but in the Absolute platform there is no such distinction."
(Srila Prabhupada Letter, January 11, 1968)
"Don't feel yourself to be alone because Krishna is always with you. Krishna is always with every living entity as Supersoul, and to His devotee especially He talks and gives instructions how to attain the perfectional stage of meeting Him. So don't feel alone. Always chant whenever possible, read our books, and there will be no great difficulty.
I shall be returning to New York by the 9th of April, and I shall then send you a new set of beads chanted upon by me. I know you are a sincere, silent worker, and if it is not too much inconvenient for you, you can send me at least one letter in a fortnight. That will encourage me and I can then give you necessary instructions how to develop."
(Srila Prabhupada Letter, April 3, 1969)
"I have got always time to answer the letters of sincere souls because my life is dedicated for their service. So you are always welcome to send your inquiries. And I shall always try to enlighten you to my best capacity."
(Srila Prabhupada Letter, July 13, 1968)
"Whatever allocation of duty there may be, if we try to execute such specific duty sincerely, that alone can make us much more advanced in Krishna Consciousness. In the Bhagavad Gita, it is stated that for the fixed up devotee there is one duty. This duty is understood through the transparent medium via media of the Spiritual Master. It is better service to Krishna and Spiritual Master in a feeling of separation; sometimes there is risk in the matter of direct service."
(Srila Prabhupada Letter, December 30, 1967)
"You have got to organize this center very nicely and Krsna has sent you already some help in the shape of a nice actress who is willing to help us in any way. Please try to convince this girl about our Krsna philosophy. You are already experienced and sincere worker, if you try to convince her, Krsna will help you from within."
(Srila Prabhupada Letter, May 25, 1970)
"I know it very well that you are all sincere workers but still it is my duty to point out the discrepancies."
(Srila Prabhupada Letter, September 1, 1971)
"Regarding your questions you say that amongst the elder disciples there are still symptoms of greed, anger, strife, bickering, etc., but you are one of them. You are one of the old students, so you fall in that group. So the fighting is among that group, but not amongst the real workers."
(Srila Prabhupada Letter, September 9, 1972)
"We require some men only like your good self to co-operate with this movement. The necessary things in this connection will surely be supplied by Krishna. Simply we want some sincere worker like your honor."
(Srila Prabhupada Letter, May 10, 1975)
"I am very, very pleased with your program to infiltrate the schools and colleges, especially by introducing our books and classes in Krishna Yoga. I say one thing, if you can somehow or other turn all of these students and hippies, or even a portion of them to Krishna Consciousness, then this Movement will sweep across the world and save it from the present-day precarious condition when everything has become so much degraded. If many of their student class take up this Movement, your country's government will help, and if they help, there is immense potency for spreading to all other places. Now you push very cool-headedly and tactfully on this program of reaching and convincing the student-class with our books and philosophy, and that will be your success of life and for that Krishna will very quickly reveal Himself to such sincere worker face-to-face, you may know it for certain."
(Srila Prabhupada Letter, February 22, 1972)