A proper Zettelkasten should be like a second mind, almost a person on its own. I am not there, yet. My buddy, the Zettelkasten, surprises me a lot but he needs to be filled with a couple thousand more Zettels. That doesn’t prevent me from giving you a small biography. I always was keen to some sort of systematic approach and always liked to put something into order. As a child I was obsessed with encyclopedic dictionaries – most about the animal kingdom, but it was really the idea of a complete system of knowledge which got me hooked. I always started to collect something within a file folder. When I look back, the filing seems to be the durable element of all my childhood projects instead of the topics themselves.