Prescribed course of study, these two, three books, that's all. Anyone can read Bhagavad-gita and Srimad-Bhagavatam or Caitanya-caritamrta — you'll learn everything. You haven't got to learn so many huge volumes of books. Because Bhagavad-gita is such nice book, if you can understand one line, you advance hundred years. So meaningful and so solid. Therefore we have published this Bhagavad-gita As It Is. Let your people read it, let them question, and try to understand what is this movement.
Srila Prabhupada — December 30, 1968, Los Angeles