Quote Originally Posted by consentingadult
I'm not sure about your statement on rationality/irrationality. How can you recognize this externally? Typically, I used to think you could tell by people being messy or untidy, but I have found that J-types can be messy as well when they are operating on a neurotic level.
Messyness has nothing to do with being P or "neurotic".

I think Rick's definitions are good.