These point appearead in the thread about colors (the relation between MBTI – and Keirsey model – and the classical “four temperaments” – choleric, melancholic, phlegmatic and sanguine), but I think that it is better in is own thread (although these will imply that some arguments will have to be repeated).
First, of course these depend of what we intend by “choleric”, “phlegmatic”, “melancholic” and “sanguine”.
In the case of “sanguine” and “choleric” there are not big problems with the definition – “outgoing, talkative, easygoing, etc.” the first and “excitable, changeable, impulsive, etc.” the second.
The problem is more with the definitions of “melancholic” and “phlegmatic” – I think that the traditional definitions are “melancholic - quiet, reserved, pessimistic, anxious, moody, etc.” and “phlegmatic - calm, even-tempered, reliable, controlled, peaceful, thoughtful, careful, etc.”.
Or, if I will associate each temperament with a particular feeling, I think it wil be something like “sanguine – joy; choleric – anger; phlegmatic – calm; melancholic – sadness”.
However, sometimes I see definitions of “melancholic” and “phlegmatic” that seems the inverse of the definitions that I am using.
But, accepting these definitions, I think that the relation FT-MBTI will be something like:
Sanguine – SP (I think that there is no disagreement about that)
Phlegmatic – SJ
Choleric – a mix of NT and EN
Melancholic – a mix of NF and IN
(Of course, if we define phlegmatic and melancholic in a different way, these will be different)
Other point – one of the reasons given to consider the NF as “Phlegmatic” is that NF are supposed to be “diplomatic” (and Keirsey even considered “diplomatic intelligence” as the feature of NF). But is the NF really “diplomatic”? I associate much more being “diplomatic” with Extrovert Sensors than with NFs. I associate much more NF with “depressed poet who kills himself because of a love disgrace” (INF) or “charismatic revolutionary leader” (ENF), not with a “diplomat”.
P.S. I hope that you could understand my English