Marguerite Witmer Kehr at The Philosophical Review.
"As Augustine had reacted against the scepticism of the Academy, and had sought for a philosophical basis which could not be questioned, so we find in the teaching of Descartes a reaction against the prevailing scepticism of his time." (p. 592)
See Augustine, The Confessions, The City of God, and On Christian Doctrine, in Great Books of the Western World (first edition, 52 Vol., 1952) volume 18, and (second edition, 60 Vol., 1990) volume 16.
See Descartes, Rules for the Direction of the Mind; Method of Rightly Conducting the Reason; Meditations on First Philosophy; Objections Against the Meditations, and Replies; and The Geometry; in Great Books of the Western World (first edition, 52 Vol., 1952) volume 31, (second edition, 60 Vol., 1990) volume 28.