Candanācārya: One time you said that Kṛṣṇa consciousness is not difficult, but to remain determined, that is difficult. Determination is difficult.
Prabhupāda: That determination comes by tapasya. Therefore we have got rules and regulation. If you follow the rules and regulation, then you will be determined. Otherwise, you will be victim of māyā. The rules and regulation is there just to keep you fixed up in your determination. But if you don't follow, then you fall down. Just like physician says, "You don't take this along with medicine. You take this." That is rules and regulation. If you follow, then you do not become victim of disease again. If you don't follow, then you... What the physician will do?
Candanācārya: But it also requires determination to follow the tapasya.
Prabhupāda: Then if he cannot, then he is cat and dog. He is not a human being. Why he should accept initiation? Let him remain a cat and dog. He promises to follow, and if he cannot follow, then he is nothing but cat and dog.