WHERNTO: erudite

The classic text made from lecture notes given by someone who understands physics very well.
The Feynman Lectures on
Physics is a physics textbook based on some lectures by Richard Feynman,
a Nobel laureate who has sometimes been called “The Great
Explainer”.[1] The lectures were presented before undergraduate
students at the California Institute of Technology (Caltech), during
1961–1963. The book’s co-authors are Feynman, Robert B. Leighton, and
Matthew Sands.
The Feynman Lectures on Physics is perhaps the most popular physics book
ever written. More than 1.5 million English-language copies have been
sold; probably even more copies have been sold in a dozen
foreign-language editions.[2] A 2013 review in Nature described the
book as having “simplicity, beauty, unity … presented with enthusiasm
and insight”.
https://en.wikipedia.org/wiki/The_Feynman_Lectures_on_Physics
Web version available at
https://feynmanlectures.caltech.edu/info/