Aristotle

Aristotle spent his life building the most comprehensive system of knowledge the world had ever seen, then watched helplessly as later generations turned his careful observations into religious dogma. The irony would have amused him — this was a man who dissected dolphins, collected constitutions like trading cards, and believed that thinking too hard could literally cook your brain.

Born in 384 BCE to the court physician of Macedonia, Aristotle arrived in Athens as a provincial outsider. For twenty years, he studied under Plato, developing a reputation for asking inconvenient questions. When Plato died and the Academy passed him over for leadership, Aristotle left to tutor a Macedonian prince named Alexander. History doesn't record whether he taught the future conqueror that the world was round — which Aristotle knew it was, based on the Earth's curved shadow during lunar eclipses.

Returning to Athens, Aristotle founded his own school, the Lyceum, where he pioneered the radical idea that knowledge should come from observation, not pure reasoning. He catalogued marine life, analyzed political systems, and developed formal logic. His students called him the 'Peripatetic' — the walker — because he taught while strolling through covered walkways. When Alexander died in 323 BCE, anti-Macedonian sentiment forced Aristotle to flee Athens. He died a year later, aged 62.

The tragedy is what happened next. Medieval scholars, working from incomplete Arabic translations of Latin translations of his Greek texts, transformed Aristotle's tentative theories into absolute truths. His careful statement that heavy objects 'tend to fall faster' became an immutable law. His geocentric model, proposed as the best available explanation, became sacred doctrine that cost Galileo his freedom and Giordano Bruno his life.