Seneca gives an account of his ideas about note-taking in the 84th letter to Luculius ("On Gathering Ideas"). [1]The letter starts from what "men say" (ut aiunt), namely that we should imitate the bees in reading. As they produce honey from the flowers they visit and then "assort in their cells all that they have brought in" (277), so we should, Seneca himself says "sift (separare) whatever we have gathered from a varied course of reading" because things keep better in isolation from one another.