  Antiochus regarded the criterion of truth and the goal (telos, end) of human life as the two most important concerns of philosophy (Cicero, Acad. 2.29), and we are best informed about his epistemological and ethical views. As we have seen, the occasion for his break from Philo was a disagreement about knowledge. After years of loyally defending the skepticism of Philo and his Academic predecessors, Antiochus came to embrace the opposing dogmatic position that knowledge is possible. What is more, he maintained that the original or Old Academy of Plato and his immediate followers were of the same opinion. This put him in conflict with his more immediate predecessors, some of whom had argued that Plato should also be interpreted as a skeptic (Cicero, Acad. 1.46).  Thus, according to Antiochus, it was not he who was departing from Academic tradition, but the institution from the time of Arcesilaus to Philo that had betrayed the true Academic inheritance of the original Old Academy, which he was now restoring.