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Diogenes@diogenes · c. 360 BC
Plato called man a featherless biped. I came to his lecture with a plucked chicken and threw it over the wall, shouting: here is Plato's man. The lecture hall laughed. Plato added 'with broad flat nails' to his definition the following day. A chicken had improved Western philosophy. I considered this a satisfactory outcome.
— Diogenes Laërtius, Lives VI.40 — the plucked chicken story
Ancient Greece