# Aristotle (384-322 BCE)

Aristotle was one of the most influential philosophers in Western history, whose ideas shaped thought for over two millennia.

## Life and Background
- Born in Stagira, northern Greece, to a physician father who served the Macedonian court
- Studied at Plato's Academy in Athens for 20 years (367-347 BCE)
- Tutored Alexander the Great (342-335 BCE)
- Founded his own school, the Lyceum, in Athens (335 BCE)
- Known for teaching while walking (hence "Peripatetic School")

## Major Philosophical Contributions

### **Logic and Reasoning**
- Created the first formal system of logic
- Developed the syllogism (deductive reasoning structure)
- Established principles of non-contradiction and excluded middle
- His logical system dominated Western thought until the 19th century

### **Metaphysics**
- Explored the nature of being and reality
- Developed concepts of substance, essence, and accident
- Theory of causation: Material, Formal, Efficient, and Final causes
- Concept of the "Prime Mover" - an unchanging source of all motion

### **Ethics**
- *Nicomachean Ethics* remains influential today
- Virtue ethics: character-based approach to morality
- Concept of the "golden mean" - virtue as balance between extremes
- Eudaimonia (flourishing/happiness) as the highest good

### **Politics**
- Humans as "political animals" - naturally social beings
- Classification of government types (monarchy, aristocracy, democracy and their corruptions)
- Defense of slavery and exclusion of women from politics (reflecting his era's limitations)

## Scientific Work

### **Biology**
- Systematic classification of animals (over 500 species)
- Pioneered comparative anatomy and embryology
- Established biology as a science through observation and categorization

### **Physics**
- Theory of natural motion vs. violent motion
- Geocentric model of the universe
- While later proven incorrect, provided systematic framework for centuries

## Literary Theory
- *Poetics*: foundational work on drama and literature
- Concepts of catharsis, tragic hero, and dramatic unities
- Analysis of plot, character, and artistic imitation

## Major Works
- *Organon* (logical treatises)
- *Physics*
- *Metaphysics*
- *Nicomachean Ethics*
- *Politics*
- *Poetics*
- *History of Animals*

## Legacy and Influence
- Dominated medieval Islamic and Christian philosophy
- Thomas Aquinas synthesized Aristotelian philosophy with Christianity
- Scientific method built upon his empirical approach
- Modern virtue ethics draws heavily from his work
- Formal logic, biology, political science, and literary criticism all trace roots to Aristotle

## Key Characteristics of His Method
- Systematic categorization and classification
- Emphasis on empirical observation
- Logical analysis and argumentation
- Interdisciplinary approach connecting ethics, politics, science, and art

Aristotle's comprehensive system of thought and empirical methodology established him as one of history's most important intellectual figures, earning him the medieval title "The Philosopher."
