Thinking about this kind of thing for a long time, as I think we all have here, where I am right now is these working definitions that I cobbled together bit by bit. I have difficulty summarizing until things “come together” for me, but it’s always subject to change:
So I’m currently at:
“A concept is a theory of a category.”
So, to remove concepts from your mind you could need to remove “theories of categories”.
======