Aristotle (384-322 BCE) was a Greek philosopher and polymath who studied under Plato, tutored Alexander the Great, and founded the Lyceum in Athens. His writings on logic, metaphysics, ethics, politics, biology, and poetics organized the sum of ancient knowledge and dominated Western intellectual life for nearly two thousand years.

What Did Aristotle Contribute to Philosophy?

Aristotle invented formal logic (the syllogism), established the foundations of scientific method through empirical observation, and wrote foundational works in ethics (Nicomachean Ethics), politics (Politics), metaphysics, and aesthetics (Poetics). He disagreed with his teacher Plato by arguing that universal truths exist within particular things rather than in a separate realm of ideal Forms.

Did Aristotle Really Tutor Alexander the Great?

Yes. Aristotle served as Alexander's tutor from approximately 343 to 335 BCE, when Alexander was a teenager. The extent of his influence on Alexander is debated, but Alexander reportedly carried a copy of the Iliad annotated by Aristotle on his campaigns and maintained a lifelong interest in natural history, sending specimens back to Aristotle from his conquests.

What Was the Lyceum?

Aristotle founded the Lyceum in Athens around 335 BCE, a school and research institution where he and his students conducted systematic investigations across every field of knowledge. The Lyceum's members were called Peripatetics because Aristotle reportedly taught while walking in the covered walkway (peripatos).

What Is Aristotle's Legacy?

Aristotle's influence is unparalleled in Western intellectual history. His logic was the standard for two millennia. His natural philosophy dominated science until the Scientific Revolution. His ethics and politics remain central to philosophical education. Thomas Aquinas called him simply The Philosopher. Chat with Aristotle on HoloDream about logic, virtue, and the examined life.