Based on his writings, Aristotle is considered a metaphysician. Aristotle wrote a large number of articles on logic such as Categories, De Interpretation and Prior Analysis. Aristotle claimed to be the founder of logic based on his writings from these books. Aristotle also believed that happiness was the ultimate goal of human life. Aristotle defined moral virtue as “a disposition to behave in the right way and as a golden mean between the extremes of deficiency and excess, which are vices.” We learn moral virtue primarily through habit and practice rather than through reasoning and instruction. » Aristotle also believed in many scientific phenomena. Phenomena such as Earth being the center of the universe. Aristotle's list of beliefs and opinions could stretch to over a million words, but we won't discuss them all.