But though we should thus hold that he had not told us how he knew what he had asserted, and that he had given us no reason for believing it to be true; we must yet admit that he had given us a reason in a sense a bad reason, a reason which was no reason because it had no tendency to show that what he believed was true; and we might also be perfectly convinced that he had given us the reason why he believed it the proposition by believing which he was induced also to believe his original assertion.