What about Leibnitz?
THIS WAS A FIFTH LEVEL MATURE SCHOLAR IN THE OBSERVATION MODE WITH A GOAL OF GROWTH, A SPIRITUALIST IN THE EMOTIONAL PART OF INTELLECTUAL CENTER. RENE [Thom] IS A FOURTH LEVEL YOUNG SCHOLAR IN THE OBSERVATION MODE WITH A GOAL OF GROWTH, A REALIST IN THE MOVING PART OF INTELLECTUAL CENTER.
SOURCE: Michael teachings Transcripts