Newman's view of natural religion gives rise to passages in his writings in which he appears to sympathise with a broader theology. Both as an Anglican and as a Catholic, he put forward the notion of a universal revelation. As an Anglican, Newman subscribed to this notion in various works, among them the 1830 University Sermon entitled "The Influence of Natural and Revealed Religion Respectively", the 1833 poem "Heathenism", and the book "The Arians of the Fourth Century", also 1833, where he admits that there was "something true and divinely revealed in every religion". As a Catholic, he included the idea in "A Grammar of Assent": "As far as we know, there never was a time when ... revelation was not a revelation continuous and systematic, with distinct representatives and an orderly succession."