David Hume - Riddle's Close, Edinburgh, where the Scottish philosopher, economist and historian lived for a while. [Getty Images]

David Hume - Riddle's Close, Edinburgh, where the Scottish philosopher, economist and historian lived for a while. 26 April 1711 - 25 August 1776. Engraving ' Edinburgh in the Olden Times ' (1848) by Daniel Wilson (Photo by Culture Club/Getty Images)

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