For a pleasant Sunday, try browsing in Project Gutenberg. The thing to do is to go to "Bookshelf" and browse the bookshelves by category. I've missed having an on-line Dewey decimal system, since that's how I browsed libraries. This, I think, is a good replacement. (When you download, pictures don't seem to be available in the ascii format. Maybe they're present in html?)
"Browse the bookshelves by category" must be a categorical imperative.
If you're like me and couldn't understand philosophy (I couldn't and Kant), you could try reading the authors in their native tongue. It couldn't be any more confusing.
Brad Evans