Stop, make an effort to interpret what caught your attention, and rewrite it with your words into notes to add to your archive.
The value of personal notes is limited unless you are annotating for specific public.
My greatest challenge is exactly this, going through the boredom of rereading a piece of text while looking for new insights
I enjoy the sensation of a close encounter with other minds, carefully and accurately considering what they have to say.
Learning principles and concepts based on experience and rationality while finding new and useful connections.
I started to read a book slowly, accurately and deeply. By going slow I can collect plenty of questions and connections .