Instructions Full Game: These are multiple-choice quizzes with four possible answer choices that include all questions in a given set.     
Identify the following philosopher:

(1623-1662) French mathematician, physicist, and Catholic theologian. Corresponded with Pierre de Fermat on probability theory, strongly influencing the development of modern economics and social science.
RenΓ© Descartes
Blaise Pascal
Gottfried Leibniz
Augustine of Hippo