Goeldi states that the paca-rana is a rodent of phlegmatic and gentle disposition,.
A man of placid and even phlegmatic temperament, he lived moderately in all things, and sought worldly prosperity only so far as was necessary to give him leisure for his literary work.
All of which suggests a personality mentally and physically phlegmatic, a suggestion strengthened by the fact that Bartholomaeus de Neocastro (quoted by Wenck) describes him as corpulent in 1290.
The serious disadvantage under which the Lithuanian army suffers is the shortage of the officer class, but the sturdy, phlegmatic peasants should, under good leadership, make good fighting material.
Little is known of the personal part played by Philip in the events associated with his name, and later historians have been divided between the view which regards him as a handsome, lethargic nonentity and that which paints him as a master of statecraft who, under a veil of phlegmatic indifference and pious sentiment, masked an inflexible purpose, of which his ministers were but the spokesmen and executors.
Philip was by nature dull and phlegmatic. He had learnt morality from Fenelon's teaching, and showed himself throughout his life strongly adverse to the moral laxity of his grandfather and of most of the princes of his time.
His phlegmatic and persistent egotism, his sacrifice of truth and honour to self-interest, his acquiescence in the worst conditions of the world, if only he could use them for his own advantage, combined with the glaring discord between his opinions and his practice, form a character which would be contemptible in our eyes were it not so sinister.