(Click to enlarge photo of Srila Prabhupada and his beloved books.)
"But one thing I may inform you, that the three books which I have already prepared, namely, the Bhagavad-gita As It Is, Teachings of Lord Caitanya, and Srimad-Bhagavatam, all these books are the ultimate source of knowledge. If you simply reproduce what I have tried to explain in those books, surely you will come out victorious, even in the midst of so many great mundane scholars.
The description given in these books, are not mundane speculations, but they are authorized versions of liberated souls, presented by our humble self. So the strength is not in us, but the strength is in the Supreme Lord. And we have simply to present them without any adulteration, in humble service spirit. That is the secret of success."
(Srila Prabhupada Letter, September 28, 1968)
"These books I have recorded and chanted, and they are transcribed. It is spoken kirtanas."
(Srila Prabhupada Letter, October 19, 1974)
"The secret of success is to receive the sound from the right source of a bona fide spiritual master. Mundane manufactured sound has no potency, and as such, seemingly transcendental sound received from an unauthorized person also has no potency. One should be qualified enough to discern such transcendental potency, and either by discriminating or by fortunate chance if one is able to receive the transcendental sound from the bona fide spiritual master, his path of liberation is guaranteed."
(Śrīmad-Bhāgavatam 2.9.8, Purport)
"We are therefore presenting Bhagavad-gītā as it is. We do not change. Why should you change? What right you have got to change? If Bhagavad-gītā is a book of authority, and if I make my own interpretation, then where is the authority? Can you change the law book according to your interpretation? Then what is the meaning of that law book? That is not law book. You cannot change. Similarly, if you accept Bhagavad-gītā as the book of authority, you cannot change the meaning. That is not allowed. What right? If you have got some opinion, if you have got some philosophy, you can write in your own book."
(Srila Prabhupada Lecture, Hyderabad, April 27, 1974)
"We don't manufacture any ideas. That is not our business. Therefore we present this Bhagavad-gītā as it is. As it is. We don't change it. Why we shall change? We are not greater authority than Kṛṣṇa. Whatever Kṛṣṇa has said, that is perfect. Why shall I change it? There are many rascals, they change the meaning, the interpretation. But that is misleading. You cannot change. Everything is very clear. Just like you do not require a lamp to show the sun. The sunshine itself is quite bright to see sun. If body says, 'I have brought one lamp. You can see,' this is nonsense."
(Srila Prabhupada Lecture, Melbourne, April 22, 1976)
"Harer nāma harer nāma harer nāmaiva kevalam (CC Adi 17.21). We repeat only. We don't change: 'Now hari-nāma is not curing, so let me add, instead of Hare Kṛṣṇa, "John Kṛṣṇa," if I may.' No. No 'John Kṛṣṇa.' (laughter) That same Hare Kṛṣṇa must be repeated. And you will be cured. So change means imperfect knowledge. No change means that is perfect knowledge. So we follow that 'no change' policy. No, not that because I think I have become now advanced, I change this to that. That means I am not advanced. My knowledge is imperfect; therefore I am changing."
(Srila Prabhupada Lecture, Los Angeles, September 20, 1972)
"You mentioned in your letter that you had read many other Bhagavad-gitas before you read mine and that none of them revealed as much to you as Bhagavad-gita As It Is. The reason is because we do not change the actual meaning of the gita at all. Many other commentators due to poor fund of knowledge tamper with the lines of Bhagavad-gita and twist the meaning for their personal motives, but we do not do like that. We present it exactly as it is; without any additions or subtractions. That is perfect in every way and therefore it is actually having a tremendous effect all over the world. The original words of Lord Krishna have unrivalled potency and anyone who is fortunate enough to hear those words and tries to apply them to his life becomes perfect."
(Srila Prabhupada Letter, March 14, 1975)
"We don't change anything. And therefore people are accepting. Adulteration, how long it will go on?"
(Srila Prabhupada Conversation, Arlington, September 11, 1972)
"Sometimes, you know, people say that I have done miracles. They say everywhere. But I do not know anything miracles or magic. If there is any miracle, that miracle is that we present things as they are, that's all, without any adulteration. So that should be the principle. Present as it is: it will be accepted."
(Srila Prabhupada Lecture, Vrindavan, October 22, 1972)