Aristotle

Aristotle (Ancient Greek: Ἀριστοτέλης, romanized: Aristotélēs; 384–322 BC) was an ancient Greek philosopher and polymath. He wrote about many subjects, including the natural sciences, philosophy, linguistics, economics, politics, psychology, and the arts. Aristotle started the Peripatetic school of philosophy in the Lyceum in Athens, which helped create the Aristotelian tradition that influenced science and thinking for many years.

Aristotle was born in Stagira in northern Greece during the Classical period. His father, Nicomachus, passed away when Aristotle was young, and a guardian raised him. At about eighteen years old, he joined Plato's Academy in Athens and stayed there for about nineteen years. After Plato died, Aristotle left Athens. He was asked by Philip II of Macedon to teach his son, Alexander the Great, starting in 343 BC. Aristotle also created a library in the Lyceum, where he wrote many books on papyrus scrolls.

Even though Aristotle wrote many works, only about a third of his original output has survived. His ideas brought together many older philosophies and had a big effect on the world. People still talk about his teachings today. His views shaped learning in the middle ages and influenced many areas, from science to religion. He is often called "The First Teacher" by scholars and is considered one of the first scientist. His studies of logic and ethics continue to be important in modern discussions.

Life

Aristotle was born in 384 BC in Stagira, a town near modern-day Thessaloniki. His father was a doctor, which may have sparked his early interest in science and nature. When he was young, both of his parents passed away, and he was raised by a guardian.

At around age eighteen, Aristotle moved to Athens to study at Plato's Academy. He stayed there for nearly twenty years, learning and teaching. After Plato’s death, Aristotle left Athens and went to Assos in Asia Minor, where he conducted research in plants and sea life with a friend named Theophrastus.

Later, Aristotle was asked to teach Alexander, who would become a famous leader. He taught Alexander many subjects for a few years. After Alexander’s father died, Aristotle returned to Athens and started his own school called the Lyceum. There, he taught and wrote many important works on many subjects, including science, ethics, and politics.

Aristotle spent many years in Athens writing and teaching. After Alexander died, some people in Athens became unhappy with Aristotle, and he chose to leave the city. He passed away in Chalcis in the same year, 322 BC.

Theoretical philosophy

Logic

Main article: Term logic

Further information: Non-Aristotelian logic

Aristotle started the first careful study of logic. His ideas about logic were the main ones used in Europe until the 1800s. Even a famous thinker named Kant said that Aristotle finished the work on logic.

Organon

Main article: Organon

Many of Aristotle's writings may not be exactly as he wrote them, because his students likely changed them later. His logic books were gathered into a set called the Organon around 40 BC. The books are:

1. Categories
2. On Interpretation
3. Prior Analytics
4. Posterior Analytics
5. Topics
6. On Sophistical Refutations

These books start with simple ideas and build up to more complex ones, like how to reason correctly.

Syllogism

Aristotle looked at different ways to argue logically. He called this "analytics," not "logic."

Demonstration

Aristotle talked about how we know things for sure. He believed that true knowledge comes from understanding why things are the way they are.

Metaphysics

Main article: Metaphysics (Aristotle)

The word "metaphysics" comes from a collection of Aristotle’s works, but he called it "first philosophy" or theology. He wanted to study what stays the same and never changes, instead of things in nature.

Substance

Further information: Hylomorphism

Aristotle looked at what makes something what it is. He thought that everything is made of two parts: matter (what it’s made of) and form (what it looks like). For example, a house is made of bricks and wood (matter), but it becomes a house when it has the form of shelter.

Moderate realism

Aristotle believed that ideas like “apple-ness” exist, but only when they are found in real apples. Unlike his teacher Plato, Aristotle thought these ideas were not separate from the things they describe.

Potentiality and actuality

Aristotle wrote about change and how things can become different. He used the words “potentiality” (what something can become) and “actuality” (what it is now). For example, a seed has the potential to become a plant, and when it does, that’s its actuality. Aristotle said that actuality is more important than potentiality.

Natural philosophy

Aristotle looked at many parts of the natural world, from physics to biology. He thought about how things move, what makes up the world, and how living things grow and change. His ideas were some of the first to try to explain these things in a systematic way.

Physics

Aristotle thought about what makes up the world using ideas like earth, water, air, and fire. He also believed there was a special substance called aether that made up the stars and planets. He described two kinds of motion: natural motion, like a stone falling, and violent motion, like throwing a ball. He also talked about how objects move and change, and why things happen the way they do.

Astronomy

In astronomy, Aristotle talked about the stars and the Milky Way. He explained why the Earth doesn’t block all the stars from view.

Geology and natural sciences

Aristotle was one of the first to write about changes in the Earth, like rivers changing over time and islands appearing after volcanic eruptions.

Biology

Aristotle studied animals carefully, looking at their bodies and how they live. He described many sea creatures and land animals, noticing how their bodies suit their ways of living. He grouped animals into different categories based on their features.

Psychology

Aristotle thought about the mind and soul. He believed that all living things have a soul that helps them grow and move. He also talked about how we remember things and what happens when we dream.

Practical philosophy

Aristotle's practical philosophy covers areas such as ethics, politics, economics, and rhetoric.

Ethics

Main article: Aristotelian ethics

Aristotle thought about what makes a good life. He believed that being good comes from doing the right things, not just knowing what is right. He wrote about this in his work called Nicomachean Ethics.

Aristotle said that everything has a special purpose. For example, the purpose of an eye is to see. He thought that people also have a special purpose, which is to live a good and happy life. To be happy, people need to develop good habits and choose to do the right things. When people live this way, they become wise and understand what truly matters.

Politics

Main article: Politics (Aristotle)

Aristotle also wrote about how cities should be run. He thought that a city is like a living thing, with each part needing the others to work well. He believed that people are naturally meant to live together in communities. Aristotle said that the goal of a city is not just to avoid problems, but to help people live good and meaningful lives.

Economics

Main article: Politics (Aristotle)

Aristotle talked about money and trade in his writings. He explained that money was created because people needed to trade things with each other. He thought that money helps people exchange goods fairly. Aristotle also shared his ideas about buying and selling, saying that some ways of making money were not natural or fair.

Rhetoric

Main article: Rhetoric (Aristotle)

Aristotle studied how people can persuade others. He said that a good speaker uses three things: their own character, the feelings of the audience, and logical reasons. He also described different kinds of speeches, like those used in ceremonies, courts, or important decisions.

Poetics

Main article: Poetics (Aristotle)

Aristotle wrote about stories and art. He thought that art, like painting or music, imitates life in different ways. He believed that stories, especially tragedies, show important parts of life and help people feel deep emotions. Aristotle said that each kind of art has its own special way of showing things.

Legacy

Further information: List of writers influenced by Aristotle

Even more than 2300 years after his death, Aristotle is still one of the most important thinkers ever. He helped shape nearly every area of knowledge in his time and started many new fields of study. Many people believe he knew more than anyone before him. He is often called the first scientist.

Aristotle started the study of logic, explored the world of animals, and helped future scientists by sharing his ideas about how to study the world. His work influenced many areas, including how we think about right and wrong, how governments should work, and even how we understand stories. Because of this, many ideas we have today still carry hints of Aristotle’s thinking.

Depictions in art

Paintings

Aristotle has been shown in artworks by many famous painters like Lucas Cranach the Elder, Justus van Gent, Raphael, and Rembrandt. One well-known painting is Raphael's The School of Athens, where Aristotle and Plato are the main figures. Rembrandt also made a famous painting called Aristotle with a Bust of Homer, showing Aristotle with a wise older man.

Sculptures

There are also statues and reliefs of Aristotle. For example, there is a stone statue in Gladstone's Library in Hawarden, Wales, made in 1899, and a bronze statue at the University of Freiburg in Germany, created in 1915.

Eponyms

The Aristotle Mountains in Antarctica are named after Aristotle. He was the first person known to suggest, in his book Meteorology, that there might be land far to the south, which he called Antarctica. There is also a crater on the Moon named Aristoteles, after Aristotle's name. An asteroid, (6123) Aristoteles, in the main asteroid belt, is also named for him.