Book:Isaac Newton/Philosophiae Naturalis Principia Mathematica

Usually referred to as just Principia.

Subject Matter

 * Celestial Mechanics

Contents

 * Newton's Law of Universal Gravitation

Critical View

 * Nobody since has been able to use geometrical methods to the same extent for the like purposes; and as we read the  we feel as when we are in an ancient armoury where the weapons are of gigantic size; and as we look at them we marvel at what manner of man he was who could use as a weapon what we can scarcely lift as a burden.