Abstract
in their famous correspondence, Stillingfleet objects that Locke's definition of knowledge, by limiting certainty to the perception of the agreement or disagreement of ideas, lessens the credibility of faith. Locke replies that his definition of knowledge does not affect the credibility of an article of faith at all, for faith and knowledge are entirely different cognitive acts: The truth of the matter of fact is in short this, that I have placed knowledge in the perception of the agreement or disagreement of ideas. This definition of knowledge, your lordship said, "might be of dangerous consequence to that article of faith, which you have endeavored to defend." This I denied, and gave this reason for it, viz....