The value of an idea has nothing whatsoever to do with the sincerity of the man who expresses it. Indeed, the probabilities are that the more insincere the man is, the more purely intellectual will the idea be, as in that case it will not be coloured by either his wants, his desires, or his prejudices.
All conservatism is based upon the idea that if you leave things alone you leave them as they are. But you do not. If you leave a thing alone you leave it to a torrent of change.
Although it is tempting to imagine an ancient era innocent of biochemical weaponry, in fact this Pandora's box of horrors was opened thousands of years ago. The history of making war with biological weapons begins in mythology, in ancient oral traditions that preserved records of actual events and ideas of the era before the invention of written histories.
A religion, that is, a true religion, must consist of ideas and facts both; not of ideas alone without facts, for then it would be mere Philosophy; - nor of facts alone without ideas, of which those facts are symbols, or out of which they arise, or upon which they are grounded: for then it would be mere History.