💬 ”Roughly speaking, the world is divided into two classes: those who use the Card Index System and those who do no...

💬 ”Roughly speaking, the world is divided into two classes: those who use the Card Index System and those who do not.” Byles, R. B, 1911. The card index system; its principles, uses, operation, and component parts (London: Sir Isaac Pitman & Sons), page v. Still true after more than a century! #Zettelkasten #NoteTaking #PKM