Aristotle's Dialectic Approach to Philosophy

Aristotle is such a rich source of information about the prisocratics. He loves to present his own ideas as compromises between more extreme views. His works, despite their lack of literary style, do retain something of the flavor of platonic dialogues. We now take it for granted that philosophy involves and even presupposes logic. On the strength of this invention alone, aristotle deserves to finish higher the ninth place in the list of all time greats.