Mortimer Jerome Adler was an American philosopher, educator, encyclopedist, and popular author. As a philosopher he worked within the Aristotelian and Thomistic traditions. He taught at Columbia University and the University of Chicago, served as chairman of the Encyclopædia Britannica board of editors, and founded the Institute for Philosophical Research.
Adler while presiding over the Center for the Study of The Great Ideas
Aristotelianism is a philosophical tradition inspired by the work of Aristotle, usually characterized by deductive logic and an analytic inductive method in the study of natural philosophy and metaphysics. It covers the treatment of the social sciences under a system of natural law. It answers why-questions by a scheme of four causes, including purpose or teleology, and emphasizes virtue ethics. Aristotle and his school wrote tractates on physics, biology, metaphysics, logic, ethics, aesthetics, poetry, theatre, music, rhetoric, psychology, linguistics, economics, politics, and government. Any school of thought that takes one of Aristotle's distinctive positions as its starting point can be considered "Aristotelian" in the widest sense. This means that different Aristotelian theories may not have much in common as far as their actual content is concerned besides their shared reference to Aristotle.
Aristotle by Francesco Hayez
A medieval Arabic representation of Aristotle teaching a student.
Aristotle, holding his Ethics (detail from The School of Athens)