He quotes pages from Mansel's Bampton Lectures in favour of his own type of agnosticism, which is to make peace between religion and science by permanently silencing the former.
Abrabanel often quotes Christian authorities, though he opposed Christian exegesis of Messianic passages.
He quotes, as if he were familiarly acquainted with their writings, a number of Greek and Roman writers, of whom it is almost certain that he had not read more than one or two.
He quotes Aristotle, Heraclides Ponticus, Aeschines Socraticus, Idomeneus of Lampsacus and Duris of Samos, and is also indebted through some Alexandrine intermediary to Ephorus and Theopompus.
It has been usually supposed that John Napier was buried in St Giles's church, Edinburgh, which was certainly the burialplace of some of the family, but Mark Napier (Memoirs, p. 426) quotes Professor William Wallace, who, writing in 1832, gives strong reasons for believing that he was buried in the old church of St Cuthbert.