Of Miracles by David Hume

David Hume (7 May 1711 [26 April O.S.] – 25 August 1776) was a Scottish philosopher and historian, regarded as one of the most important figures in the history of Western philosophy and the Scottish Enlightenment. Hume is often grouped with John Locke, George Berkeley, and a handful of others as a British Empiricist.

During his lifetime, Hume was more famous as a historian....

In his discussion of miracles in An Enquiry concerning Human Understanding (Section 10) Hume defines a miracle as "a transgression of a law of nature by a particular volition of the Deity, or by the interposition of some invisible agent". Given that Hume argues that it is impossible to deduce the existence of a Deity from the existence of the world (for he says that causes cannot be determined from effects), miracles (including prophesy) are the only possible support he would conceivably allow for theistic religions.

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Read his essay on miracles here.