James Harris’s new Hume biography offers, among other things, ‘a series of conjectures as to what Hume’s intentions were in writing in the particular ways that he did about human nature, politics, economics, history, and religion’. The biography is particularly novel with regard to Hume’s intentions when writing about religion, which, Harris argues, were rather benign. Harris fails to appreciate the full extent of the difficulties attaching to his series of conjectures, however.