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
Philosophy of Love: A Partial Summing-Up Philosophy of Love: A Partial Summing-Up Philosophy of Love: A Partial Summing-Up is a 2009 book by the American philosopher Irving Singer, in which the author summarizes and expands upon the themes of his earlier three-volume works "The Nature of Love" (1984–1987) and "Meaning in Life" (1992–1996). The book, which has been described as an "intellectual biography" by its author, received positive reviews. "Philosophy of Love: A Partial Summing-Up" was published by MIT Press. "Philosophy of Love: A Partial Summing-Up" received positive reviews from the philosopher Leslie Armour in "Library Journal", and in "Publishers Weekly". The book was also reviewed