The discussion centers on finding comprehensive textbooks for theoretical physics, specifically covering particle physics, general relativity, and cosmology, starting from high school level concepts. Participants clarify that the original inquiry was about textbook recommendations, with suggestions to consult university course requirements for relevant materials. One participant humorously notes the narrowing focus from general university topics to high-energy theoretical physics, hinting at string theory as a potential area of study. Another contributor emphasizes the importance of a structured learning approach, advocating for a broad understanding of various theories, including string theory. Recommendations include the book by Manton and Mee, which offers a consolidated overview and additional resources at the end of each chapter, along with a suggestion to explore the Good Theorist website for further literature on theoretical physics.