For 10 points, name this philosopher of the Nichomachean Ethics, Physics, Politics, and Poetics.
Henri Bergson wrote a dissertation on this man's "Conception of Place," and Porphyry penned the Isogage, a commentary on one of this man's works. Roger Bacon's Opus Major and Opus Minor criticized this man, and he wrote a work that states that young men are not well-suited to listen to discussions of right and wrong.  Another of his works defines nature as a principle of change, while another contrasts the theories of Hippodemus and Plato. He also wrote a work that emphasizes plot and claims that recognition is the key to producing catharsis. For 10 points, name this philosopher of the Nichomachean Ethics, Physics, Politics, and Poetics.
Henri Bergson wrote a dissertation on this man's "Conception of Place," and Porphyry penned the Isogage, a commentary on one of this man's works.
Aristotle