If you understand what you read and translate it into the different context of your own thinking, materialised in the slip-box, you cannot help but transform the findings and thoughts of others into something that is new and your own. It works both ways: The series of notes in the slip-box develops into arguments, which are shaped by the theories, ideas and mental models you have in your head. And the theories, ideas and mental models in your head are also shaped by the things you read. They are constantly changing and challenged by the surprising connections with which the slip-box confronts you. The richer the slip-box becomes, the richer your own thinking becomes. The slip-box is an idea generator that develops in lockstep with your own intellectual development. Together, you can turn previously separated or even isolated facts into a critical mass of interconnected ideas.

— How to Take Smart Notes by Sönke Ahrens