The book “Principia” brought him the fame and made him a public figure because of its importance to change the commoners’ view of the universe. Obviously Newton’s idea of the universe dominated the knowledge of the physics till Albert Einstein came up with a relative view of the universe in his theory of Relativity. Indeed even after the publishing of Einstein’s Theory of Relativity, Newton concept of the universe continued to teach people about the system and functionality of the universe.
Newton’s career began with his study on calculus. Though he invented calculus solely, the credit of inventing calculus fell upon the part of German scientist Leibniz. Anyway, in 1669 on the subject of infinite series Newton’s study paper "De analysi per aequationes numero terminorum infinitas" was greatly appreciated by his contemporaries. Regarding Newton’s genius Isaac Barrow’s comment was as following: "Mr Newton, a fellow of our College, and very young ... but of an extraordinary genius and proficiency in these things." (Gjertsen, 1986, p. 143) Though Newton did not get the credit of inventing calculus, it is deemed that Newton independently contributed to the development of infinitesimal calculus. Also modern researchers found that Newton’s contribution to the development of infinitesimal calculus was hinted in Book 1 of Principia and another manuscript “On the motion of bodies in orbit” in 1684. Indeed Newton’s Principia was not written in the language of Calculus, though he comprehensively used infinitesimal calculus in geometric forms. In Principia, Newton effectively employed “limiting values of the ratios of vanishing small quantities” naming it “the method of first and last ratios.” (Newton, 1727, p. 46) The use of “limiting values of the ratios of vanishing small quantities” through the method of indivisibles was the