the later 1650s, Cudworth was consulted by John Thurloe, Oliver Cromwell's Secretary to the Council of State, with regard to certain university and government appointments and various other matters. During 1657, Cudworth advised Bulstrode Whitelocke's sub-committee of the Parliamentary "Grand Committee for Religion" on the accuracy of editions of the English Bible. Cudworth was appointed Vicar of Great Wilbraham, and Rector of Toft, Cambridgeshire Ely diocese (1656), but surrendered these livings (1661 and 1662, respectively) when he was presented, by Dr Gilbert Sheldon, Bishop of London, to the Hertfordshire Rectory of Ashwell (1 December 1662). Given Cudworth's close cooperation with prominent figures in Oliver Cromwell's regime (such as John Thurloe), Cudworth's continuance as Master of Christ's was challenged at the Restoration but, ultimately, he retained this post until his death. He and his family are believed to have resided in private lodgings at the "Old Lodge" (which stood between Hobson Street and the College Chapel), and various improvements were made to the college rooms in his time. He was elected a Fellow of the Royal Society in 1662. Later life In 1665, Cudworth almost quarrelled with his fellow-Platonist, Henry More, because of the latter's composition of an ethical work which Cudworth feared would interfere with his own long-contemplated treatise on the same subject. To avoid any difficulties, More published his Enchiridion ethicum (1666–69), in Latin; However, Cudworth's planned treatise was never published. His own majestic work, The True Intellectual System of the Universe (1678), was conceived in three parts of which only the first was completed; he wrote: "there is no reason why this volume should therefore be thought imperfect and incomplete, because it hath not all the Three Things at first Designed by us: it containing all that belongeth to its own particular Title and Subject, and being in that respect no Piece, but a Whole." Cudworth was installed as Prebendary of Gloucester (1678). His colleague, Benjamin Whichcote, died at Cudworth's house in Cambridge (1683), and Cudworth himself died (26 June 1688), and was buried in the Chapel of Christ's College. An oil portrait of Cudworth (from life) hangs in the Hall of Christ's College. During Cudworth's time an outdoor Swimming Pool was created at Christ's College (which still exists), and a carved bust of Cudworth there accompanies those of John Milton and Nicholas Saunderson. Cudworth's widow, Damaris (née Cradock) Andrewes Cudworth (died 1695), maintained close connections with her