The discussion centers on the value of reading Newton's "Principia" for understanding classical physics and its historical context. Participants express skepticism about the necessity of reading the original text, suggesting that modern interpretations and educational resources provide clearer insights into Newton's work. Some recommend secondary literature, like Vladimir Arnold's works, which elucidate Newton's concepts more effectively than the original text. The complexity of Newton's geometrical language and the lack of rigorous calculus in the "Principia" are highlighted as barriers to comprehension. While reading the "Principia" may enrich historical understanding, it is deemed less essential for grasping the physics concepts that are better taught through contemporary methods. The conversation also touches on the evolution of mathematical notation and the significance of Newton's laws, emphasizing that they serve as foundational principles rather than predictive tools without empirical context. Overall, the consensus leans towards prioritizing modern educational approaches over direct engagement with the original text.