Prabhupāda: What do you mean by illusion? Don't talk nonsense. (laughter) If I gave you lump of cotton instead of this shirt, will you accept it?
Guest (3): I'm sorry. I don't mean to argue. I am sorry.
Prabhupāda: You are arguing?
Guest (3): I don't mean to argue with you.
Prabhupāda: No. If I say...
Guest (3): I'm trying to understand something, but you...
Prabhupāda: This is cotton. This is cotton. Everyone knows. But if I give you a lump...
Guest (3): Do you know that? Do you know that for a fact? How do you know this is not illusion? How do you know that? Do we know anything for sure?
Prabhupāda: What proof is that is illusion?