"Descartes is rightly considered the father of modern philosophy" - Schopenhauer A new translation directly from the original manuscript into English of Descartes' famous work "Principles of Philosophy" (original Latin title Principia philosophiae). This edition contains a new introduction and afterword from the translator, as well as a timeline of Descartes' life and summaries of each of his works. Descartes writes here a comprehensive treatise on his philosophical and scientific ideas. This work helped to establish the mathematical and mechanistic foundation of modern physics and had a significant impact on the development of Western philosophy and science.