Herbert is remembered as a target of Locke’s attack on innate ideas (Essay, Bk. i. 3, 15). He held that notitae communes or common notions can be seen to be true by unaided and innate reason, granted to us by divine providence. Amongst these are the five that Locke cites for criticism: belief that there is one God, that he must be worshipped, that this is to be done with worship and piety together, that sin requires repentance, and that we will be awarded rewards and penalties in an afterlife (De Veritate, ‘On Truth’, 1624). Herbert’s other works include De Causis Errorum (‘On the Causes of Errors’, 1645) and one of the first attempts at comparative religion in the modern era, the posthumous De Religione Gentilium (‘On the Religion of the Gentiles’, 1663). He was known as the father of deism.