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Euclid of Megara (450-380 BC)
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Antisthenes (445-360 BC)
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Diogenes of Sinope (400-325 BC)
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Aristippus (435-356 BC)
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Plato (428-347 BC)

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Speusippus (407-339 BC)
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Xenocrates (396-314 BC)
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Aristotle (384-322 BC)

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Theophrastus (370-288 BC)
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??Stilpo (380-300 BC)??
to stoics
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