Philosopher · 384 BC – 322 BC
Aristotle
Key Takeaways
- Aristotle invented formal logic — the syllogism — which structured reasoning in the West for 2,000 years.
- He tutored Alexander the Great, linking philosophy to one of history's greatest empires.
- His works span ethics, politics, biology, physics, rhetoric and poetics, making him history's first systematic polymath.
- Aristotelian thought became the backbone of medieval scholasticism and university education.
Aristotle of Stagira stands among the most influential thinkers in human history. A student of Plato and tutor to Alexander the Great, he bridged the worlds of pure philosophy and world-shaping power.
Early life and the Academy
Born in 384 BC in Stagira, Aristotle traveled to Athens at seventeen to study at Plato’s Academy, where he remained for roughly two decades. Though deeply shaped by Plato, he came to reject his teacher’s doctrine that ideal “Forms” exist independently of the physical world — insisting instead that knowledge begins with observation of nature.
The Lyceum and empirical science
After tutoring the young Alexander in Macedon, Aristotle returned to Athens and founded the Lyceum. There he and his students catalogued plants and animals, dissected specimens, and produced the first systematic works of biology. His habit of teaching while walking gave his school the name Peripatetic.
Enduring influence
Aristotle’s writings on logic, ethics, and politics became the curriculum of the medieval university and the foundation of Aristotelianism. For centuries, to study philosophy in the West was to study Aristotle.
Influence
Aristotle's corpus became the foundation of medieval Islamic and Christian philosophy; thinkers from Avicenna to Aquinas built their systems on his framework, and his logic was taught essentially unchanged until the 19th century.
Legacy
Often called simply "The Philosopher" in the Middle Ages, Aristotle shaped the structure of Western education, the vocabulary of science, and the method of reasoned argument.
Major Works
- Nicomachean Ethics
- Politics
- Metaphysics
- Organon (logical works)
- Poetics
Controversies
- Defended natural slavery in the Politics, a view later used to justify oppression.
- His physics (geocentric, four elements) dominated and arguably delayed science until overturned in the Scientific Revolution.
Notable Quotes
“Knowing yourself is the beginning of all wisdom.”
“We are what we repeatedly do. Excellence, then, is not an act, but a habit.”
Connections
Frequently Asked Questions
Who was Aristotle?
Aristotle (384–322 BC) was a Greek philosopher and polymath who founded formal logic, made pioneering contributions to biology and ethics, and tutored Alexander the Great.
Who taught Aristotle?
Aristotle studied under Plato at the Academy in Athens for around twenty years.
What is Aristotle famous for?
He is famous for inventing formal logic, founding virtue ethics, systematizing biology, and writing foundational works on politics, metaphysics and rhetoric.
Biography Books
- Aristotle: A Very Short Introduction — Jonathan Barnes (2000)beginner
A concise, readable entry point to his thought.
View on Amazon ↗
Movies & Documentaries
- Aristotle's Ethicsdocumentary · 2010
Overview of his ethical philosophy.
Citations & Sources
- Barnes, J. (ed.) — The Complete Works of Aristotle (Princeton, 1984).
- Encyclopædia Britannica — 'Aristotle'.
People Like Aristotle
Plato
96Plato was a Greek philosopher who founded the Academy in Athens, wrote the foundational dialogues of Western philosophy, and developed the influential theory of Forms.
Why Aristotle studied for ~20 years at Plato's Academy before developing his own empirical philosophy.
Socrates
95Socrates was a classical Greek philosopher credited as a founder of Western philosophy, famous for the Socratic method of questioning and for his trial and execution in Athens.
Why Inherited the Socratic method of definition and ethical inquiry through Plato.
Alexander the Great
96Alexander the Great was the king of Macedon who built one of the largest empires in history by his early thirties, spreading Greek culture across three continents.
Why Personally tutored Alexander as a teenager in Macedon.
Avicenna
90Avicenna was a Persian polymath of the Islamic Golden Age, one of the greatest physicians and philosophers of the medieval world, whose Canon of Medicine was a standard text for six centuries.
Why Also a philosopher & polymath · Worked in logic
Zeno of Citium
86Zeno of Citium was an ancient Greek philosopher who founded Stoicism, teaching that virtue and reason are the path to a good life, in lectures given at the Painted Porch (Stoa) in Athens.
Why Also a philosopher · Worked in ethics & logic
Thomas Aquinas
91Thomas Aquinas was a medieval Italian theologian and philosopher whose synthesis of Christian theology and Aristotelian philosophy became central to Catholic thought and the high point of scholasticism.
Why Also a philosopher · Worked in ethics & metaphysics