The basis of the [scientific] method is a belief in natural uniformity – if two events are regularly connected in our observations we can conclude that they obey a universal law. But this is not a conclusion we reach by observation. No amount of evidence can demonstrate the existence of laws of nature, since new experience can always overturn them. Science rests on the belief that the future will be like the past; but that belief is rationally groundless. This is not a new line of thinking. David Hume argued that the expectation that the future will be like the past, which is the basis of induction, is a matter of habit. Hume wanted to show that since miracles transgress known laws of nature it was unreasonable to accept reports of them, in the Bible or anywhere else. But his arguments against induction showed that the laws of nature could not in fact be known, so events that seemed impossible could happen at any time. The upshot was that faith in miracles returned by the back door of sceptical doubt.
John Gray (philosopher)