 In 1485 he traveled from Florence to Paris, the citadel of Aristotelian scholasticism. Before he left, at the age of twenty-two, he had made his first important contribution to philosophy—a defense of the technical terminology which since Petrarch’s time had incited humanist critics of philosophy to attack scholastic Latin as a barbaric violation of classical norms. Having refined his literary talent while developing his philosophical skills, Pico issued his manifesto in the form of a letter to the renowned Ermolao Barbaro, using the occasion and the genre to show, like Plato in the Phaedrus, how rhetoric could equip a philosopher to defend his calling against rhetorical assault.