Letters on the English author of "Novum Organum" and father of experimental philosophy. Letter 13 is about John Locke and his theories on the immortality of the soul. Letter 14 compares British philosopher Isaac Newton to French philosopher René Descartes. Upon his death in 1727, Newton was compared to Descartes in a eulogy performed by French philosopher Fontenelle. While the British did not appreciate this comparison, Voltaire argues that Descartes, too, was a great philosopher and mathematician. Letter 15 focuses on Newton's law of universal gravitation. Letter 16 talks about Newton's work with optics. Letter 17 discusses Newton's work with geometry and his theories
Warren Goldfarb Warren Goldfarb Warren David Goldfarb (born 1949) is a philosopher and mathematician with a specialization in the history of analytic philosophy and in logic, most notably his work on the classical decision problem (see his book on the subject, "The decision problem: Solvable classes of quantificational formulas", with Burton Dreben). He received his Ph.D. from Harvard University, where he is now Walter Beverly Pearson Professor of Modern Mathematics and Mathematical Logic in the Department of Philosophy. He has been on the Harvard faculty since 1975, and was tenured in 1982, the only philosopher to be promoted to tenure at Harvard