Beside the risk of delusion which attaches upon momentary miracles, there is also much more room for imposture. The account cannot be examined at the moment: and when that is also a moment of hurry and confusion, it may not be difficult for men of influence to gain credit to any story which they may wish to have believed. This is precisely the case of one of the best attested of the miracles of Old Rome, the appearance of Castor and Pollux in the battle fought by Posthumius with the Latins at the lake Regillus. There is no doubt but that Posthumius, after the battle, spread the report of such an appearance. No person could deny it whilst it was said to last. No person, perhaps, had any inclination to dispute it afterwards; or, if they had, could say with positiveness what was or what was not seen by some or other of the army, in the dismay and amidst the tumult of a battle.
In assigning false perceptions as the origin to which some miraculous accounts may be referred, I have not mentioned claims to inspiration, illuminations, secret notices or directions, internal sensations, or consciousnesses of being acted upon by spiritual influences, good or bad, because these, appealing to no external proof, however convincing they may be to the persons themselves, form no part of what can be accounted miraculous evidence. Their own credibility stands upon their alliance with other miracles. The discussion, therefore, of all such pretensions may be omitted.
II. It is not necessary to bring into the comparison what may be called tentative miracles; that is, where, out of a great number of trials, some succeed; and in the accounts of which, although the narrative of the successful cases be alone preserved, and that of the unsuccessful cases sunk, yet enough is stated to show that the cases produced are only a few out of many in which the same means have been employed. This observation bears with considerable force upon the ancient oracles and auguries, in which a single coincidence of the event with the prediction is talked of and magnified, whilst failures are forgotten, or suppressed, or accounted for. It is also applicable