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
Theosophy and Western philosophy Theosophy and Western philosophy Modern Theosophy is classified by prominent representatives of Western philosophy as a "pantheistic philosophical-religious system." A Russian philosopher Vladimir Trefilov claimed that Blavatsky's doctrine was formed from the beginning as a synthesis of philosophical views and religious forms of the various ages and peoples with modern scientific ideas. An author of The Routledge Encyclopedia of Philosophy Michael Wakoff stated that Blavatskian Theosophy was based on Buddhist and Hindu philosophy, and fragments of the Western esotericism with using an "absolutist metaphysics." In "" it is said Blavatsky's Theosophy is an attempt to merge into a universal doctrine