I read six pages of the dictionary and learned next to nothing.
https://old.reddit.com/r/oneliners/comments/1syv82e/i_was_so_bored_that_i_memorized_six_pages_of_a/
https://old.reddit.com/r/oneliners/comments/1syv82e/i_was_so_bored_that_i_memorized_six_pages_of_a/