| Actually, The Principia Mathematica was written by Alfred North Whitehead and Bertrand Russell, and was published nearly 200 years after the death of Newton (who had nothing to do with it- other than general influence, of course). Newton's work with a similar title is called Philosophiae Naturalis Principia Mathematica (sometimes referred to as simply "the Principia," which is why some get these confused. They are separate works, however). |