One of my favorite quotes—not a very strong relation to note-taking, but not entirely unrelated either:
Lewis Carroll's White Queen, in response to Alice's "One can't believe impossible things'":
"I daresay you haven't had much practice... When I was your age, I always did it for half-an-hour a day. Why, sometimes I've believed as many as six impossible things before breakfast."
As a historian of philosophy, I don't necessarily practice this, but I have a large collection of such things.