attain certitude in specific situations. Newman recognised that there are dangers associated with using the Illative Sense. In using it one may become vulnerable to superstition and eccentricity. But superstition is held in check, Newman suggests, by the moral element in the act of faith, that is, holiness, obedience, and the sense of duty will safeguard faith from becoming mere superstition. Chapter breakdown Part I Assent and Apprehension Modes of holding and apprehending Propositions Assent considered as Apprehensive The Apprehension of Propositions Notional and Real Assent Apprehension and Assent in the matter of Religion Part II Assent and Inference Assent Considered as Unconditional Certitude Inference The Illative Sense Inference and Assent in the matter of Religion. See also Thomas Bayes Bayes' theorem Bayesian probability Development of doctrine Probabiliorism Notes References Walgrave, O.P., J. H., Newman the Theologian: The Nature of Belief and Doctrine as Exemplified in His Life and Works. Translated by A. V. Littledale (London: Geoffrey Chapman, 1960). External links HTML etext of the Grammar of Assent at Newmanreader.org Philosophy books Works by John Henry Newman