For reading to matter, it has to be active. That means note taking. That means, while reading, deciding what the most important ideas and themes are then recording them in your own words. After having felt like I’d lost many incredible books to passive reading, I started taking notes only to find, long after the fact, that the material had become part of who I am. The thoughts I recorded I later recalled not as a bullet points of a foreign work, but as my own ideas.
Beautifully stated. I don’t do this enough with non-fiction work but really should.