- Lived:
- 384–322 BCE · born in Stagira, northern Greece; worked mostly in Athens
- Tradition:
- Classical Greek; Plato's greatest student and greatest critic; founder of the Lyceum
- The Big Idea:
- Truth isn't hiding in another world — it's here, in things, waiting to be studied; and a good life isn't a feeling you chase but a character you build, habit by habit.
- In their words:
- "All men by nature desire to know."
- If you remember one thing:
- He invented logic, founded biology, wrote the West's most influential book on how to live — and for nearly two thousand years, when Europe said "the Philosopher," it meant him.