Dr. John Rao discusses theological methodology, including whether it was influenced by Descartes and Newton, in the 1600s and 1700s. Another source of debate regarding teaching in the 1600's and 1700's which Dr. Rao tackles involves the question of methodology. How do you develop your theology? Through "speculative" theology, like that of St. Thomas, "positive" theology, with its focus on Scripture, Church Fathers, and history, through the "inward" and mathematically influenced vision of Descartes, or through acceptance of the input coming from scientific information associated with the work of men like Newton? Taken from: Regalism, Revolution, the Reign of Terror and the Assault on Catholicism (1648-1799) - 1998 VonHildebrand Institute