Prabhupāda: Acāryavān puruṣo veda. Without following the ācārya, if we simply theorize, that is not good. Just like the same example: if you want to put some thesis, the university regulation is that he must be guided by three experienced professor. You, we cannot simply put forward your thesis without being guided by the experienced professors. That thesis will not be accepted. Similarly, here Arjuna directly hears from Kṛṣṇa. So he says that "You are Parabrahma. Now I understand." Now people may say that "You are accepting Him Parabrahma. Where is your authority? You are friend. You can say Parabrahma or anything—out of love. That is not final." Therefore he quotes that . . . what is that? Āhus tvāṁ ṛṣayaḥ sarve: "All the big, big ṛṣis, they have accepted You." Svayaṁ caiva bravīṣi me: "And You, the Supreme Person, You are also speaking to me. And so far I am concerned, I have realized now that You are the Supreme Lord, Parabrahma." So if we follow Arjuna, then there is no difficulty. Accept Kṛṣṇa as Parabrahma. So Arjuna has heard it from Kṛṣṇa directly. This is the process. Now Kṛṣṇa says that, "I accept your statement in toto." What is that language?
Nitāi: Sarvam etad ṛtaṁ manye (BG 10.14).
Prabhupāda: Sarvam etaṁ ṛtaṁ manye yad vadasi keśava: "My dear Keśava . . ." Keśava, the another name of Kṛṣṇa, "whatever You have said, I accept them cent percent." Sarvam etaṁ ṛtam. Ṛtam means fact, truth. This is understanding. So if we accept in that way, then our knowledge is perfect. And if you accept in a different way . . . just like Gandhi says that, "I do not believe that Kṛṣṇa ever lived." Just see. He does not believe in the ācāryas. All the ācāryas, Rāmānujācārya, Madhvācārya, they have written big, big comment on Bhagavad-gītā, even Śaṅkarācārya. He does not believe anyone. He believes himself. And that kind of belief is not help. And our process is: because Kṛṣṇa has been accepted by all the ācāryas, all the great sages, Arjuna has accepted—we accept, that's all. We have no difficulty.