Professor: May I ask a personal question?
Prabhupāda: Hm?
Professor: I heard that you were a chemist before.
Prabhupāda: I was not chemist, but I was manager in a big chemical factory. Therefore, automatically, I learned something of chemist. And later on I started my own chemical factory.
Professor: You were belonging to Bengal?
Prabhupāda: Yes.
Professor: And you were having also a guru there?
Prabhupāda: Oh, yes, certainly. Without guru how can you...
Professor: Yes, naturally.
Prabhupāda: He is my guru. Show the photo.
Devotee: It's just above you, Śrīla Prabhupāda.
Prabhupāda: Oh, yes. He is my guru.