Now, here is a book, Bhagavad-gita. Now, apart from other books, other knowledge which He imparted to other…, now, here is a book which was imparted to Arjuna. Now, it is so, the depth of knowledge…, that people are still considering, great, great scholars. We are not reading, but Dr. Radhakrishnan, one of the greatest scholars of the world-now he is the president of India — he is discussing. Professor Einstein, he was living here in America. He was a German Jew, and I think he was living in America. He was a great student of this Bhagavad-gita. Hitler. Hitler was a great student of Bhagavad-gita. And there were many scholars still reading Bhagavad-gita, trying to understand. Just see what best depth of knowledge He has given. It is made by Krsna. So in knowledge, in wealth, in strength, in beauty, and in everything He was opulent. Therefore He is Bhagavan. You cannot accept any ordinary man as Bhagavan. So therefore Bhagavan.
From Srila Prabhupada’s lecture on BG 2.7-11 — New York, March 2, 1966