The Principles of Newton

The Principia of Newton was an exact, quantitative description of the motions of all visible by this description. This description was stated in terms of laws which subluned the previous laws of Galileo and Kepler in one vast nothing like this had ever been known before. What Newton had given to man was a system of natural philosophy that was based on observation, mathematically demonstrated,. It was open to all, to check, correct, and advance.