The Augustan History (p. 163, 164) cannot, in this instance, be reconciled with itself or with probability. How could Philip condemn his predecessor, and yet consecrate his memory? How could he order his public execution and yet, in his letters to the senate, exculpate himself from the guilt of his death? Philip, though an ambitious usurper, was by no means a mad tyrant. Some chronological difficulties have likewise been discovered by the nice eyes of Tillemont and Muratori, in this supposed association of Philip to the empire.