Prabhupada: There may be some exceptions, but, I mean to say, just like the cow dung is stool -- this is an exception -- but why this exception is accepted, that if you scientifically examine, analyze, you find it is correct?
Prof. Kotovsky: That is due to analyze. That's right. That's from common sense point of view.
Prabhupada: Similarly, another, another instance is there. Just like conchshell. Conchshell is the bone of an animal. So according to Vedic instruction, if you touch the bone of an animal, you become impure. You have to take bath. You become impure. But this conchshell is kept in the deity room because it's accepted as pure by the Vedas. So my point is that we accept Vedic laws in such a way, without argument, accept because it is stated in the Vedas, and that is the principle followed by scholars. If you can substantiate your statement by quoting from the Vedas, then it is accepted. You do not require to substantiate in other ways if you prove by Vedic quotation. Sruti-pramana. It is called sruti-pramana. There are different kinds of pramana, evidences. Just like in the legal court if you can give quotation from the law books, your statement is accepted, similarly, all statements which you give, if they are supported by sruti-pramana... I think you know. The Vedas are known as Srutis.