The Principia (Philosophiæ Naturalis Principia Mathematica by Isaac Newton)

The Principia, authored by Isaac Newton, is a foundational work that explains the laws of motion and gravity, describing how objects move and interact in the universe. It shows that gravity is a universal force acting between all masses, and that the same principles govern both earthly and celestial phenomena. Newton's laws allow us to predict planetary motions, the behavior of projectiles, and other physical systems with great accuracy. This work laid the groundwork for classical mechanics, transforming our understanding of nature by revealing the mathematical laws that describe the physical world order.