Prabhupāda: In Sanskrit logic all these examples are there from nature's study.
Brahmānanda: Simple.
Prabhupāda: Simple, yes. Another is nagna-mātṛkā-nyāya. Nagna-mātṛkā-nyāya, just like sometimes if somebody says, "Mother, when you were a child, you were naked. Why do you put cloth now?" Nagna-mātṛkā-nyāya. The mother was naked when she was a child. Therefore she should remain naked still. That is nagna-mātṛkā-nyāya.
Brahmānanda: What is that in connection?
Prabhupāda: It has connection, if somebody was not very important and now he has become important, so the logic is how this man can be important? This logic. That because the mother was naked in the childhood, therefore she should not put on any garment. This is nagna-mātṛkā-nyāya. We change according to the circumstances. You cannot say that this must remain like this.