Don't copy notes verbatim - translate into your own words and thought. This act of deliberate processing applies your own frame of reference, allowing
easier recall / retrieval
draw your own inferences
discover patterns
The input to the system of evergreen notes is a thought (Take thoughtful notes).
Read through the resource and as you jot things down, make sure to Take thoughtful notes rather than simply copy verbatim (although taking a pull quote can have utility too).
Take thoughtful notes
Achieving this comes from note taking representing thoughts (Take thoughtful notes) which are then extracted and networked into a web of other ideas.