Nara-narayana: When you came to the Western world, no one anywhere believed that it would be successful, I think. But actually it has become very successful, by preaching.
Prabhupada: I myself did not believe I shall be successful, [laughs] what to speak of others. But because I did in the proper line, so it has become successful.
From Srila Prabhupada's Morning Walk — December 12, 1973, Los Angeles