Granted that miracles can occur, it is, of course, for experience to say whether one has done so on any given occasion. But mere experience, even if prolonged for a million years, cannot tell us whether the thing is possible. Experiment finds out what regularly happens in Nature: the norm or rule to which she works. Those who believe in miracles are not denying that there is such a norm or rule: they are only saying that it can be suspended. A miracle is by definition an exception.
