Prabhupāda: Perspiration, have you tasted?
Peter: Tasted it? Yes. Salt.
Prabhupāda: Salty, yes.
Peter: Like the ocean, yes.
Prabhupāda: It has got.
Peter: But one ocean is not the same as another, eh? (chuckles) My business is mathematics. It's not very transcendental.
Prabhupāda: You are teacher?
Peter: No, not anymore. It's not very transcendental.
Śrutakīrti: He's asking if his business is transcendental.
Prabhupāda: No, if it is used for Kṛṣṇa, then it is transcendental. If it is used for your sense gratification, then it is material. That is the difference.
Peter: Yes. And how do you know whether you're using it for Kṛṣṇa or not?
Prabhupāda: Yes. That requires training from the Kṛṣṇa's representative, guru. Just like these boys are being trained up in Kṛṣṇa consciousness. So it requires little training. Just like you are mathematician. To make another student mathematician, you have to train him. You have to teach him how to calculate "Two plus two equal to four." It will never be five. If somebody says, "No, my calculation is 'Two plus two equal to five,' " will it be accepted?
Peter: I'm afraid sometimes it can be true. (laughs)
Prabhupāda: How it can be true?
Peter: One plus one can equal three.
Prabhupāda: Huh?
Peter: One plus one can equal three sometimes.
Prabhupāda: Is there mathematical calculation?
Peter: I know that it's ah . . . I mean, things reproduce. Life is not so fixed, not so rigid. But one does have to be trained, it's true. Training is . . . some people can understand and some people cannot understand, and . . .
Prabhupāda: That is difference of understanding.
Peter: Yes.