This text deals with the subject of philosophical error in David Hume's case. The author defends the thesis according to which it is not possible to teach a philosophy like the one of David Hume if the history of its philosophical ideas is not assumed critically. Such a critical approach must also give an account of the possible mistakes committed by Hume in the solution to some of the problems he created himself. This history includes the years between the Treatise on human nature and the Investigation concerning human understanding, since Hume presented two versions of his consideration of the subject of causality. For it, the author shows how a consideration on the origins of the philosophical error like the one proposed by Reichenbach would allow a historical understanding or a philosophy of knowledge as the one developed by Hume.