My career was as an electrical engineer. Richard Feynman’s lectures on physics were like hearing from God why things work like they do.
I bought the Feynman Lectures when I was a university freshman, not for a class, but just because it seemed interesting. Which it was, but it was also a lot of work. I ran out of time, and it went on a shelf.
However, I stayed interested in Feynman. One of my heros.