Mathematical Principles of Natural Philosophy, written in 1687, is the crystallization of Newton's 20 years of thinking, experimental research, a large number of astronomical observations and countless mathematical calculations. In the past 20 years, and decades before that, many advanced thinkers and scientists in Europe have made many achievements in studying nature and mathematics.

Descartes' cosmic system is the largest one Newton faced when he was born. Universities in Britain and even the whole European continent are teaching it and taking it as the standard of cosmology. Newton saw the problem of Cartesian system during the Great Plague, and destroying this system became the primary and direct goal of Newton's research career. To establish a brand-new system, it takes 20 years of thinking and research until the writing of Mathematical Principles of Natural Philosophy is completed.

Newton was also influenced ideologically by the British thinker Francis Bacon. 156 1- 1626), Locke (John Locke, 1632- 1704) and Moll (Henry Moore,1614-). Newton was influenced by robert boyle (1627- 169 1), a contemporary British chemist, in his scientific and theological thoughts. He believes that the noblest duty of every philosopher is to know and prove the existence and perfection of God. Nature is created by God, and it is only the external form of God's divinity. He can be known and imagined by human beings, but human beings can only. In this sense, all kinds of research that Newton engaged in all his life, including mathematics, physics, astronomy, alchemy, biblical archaeology, biblical chronology and theology, all served the God in his mind.

Newton's Mathematical Principles of Natural Philosophy was written under this background.