- Anscombe, G.E.M.@ (6)
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- Diogenes of Sinope@ (6)
- Dworkin, Ronald@ (8)
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- Hegel, Georg Wilhelm Friedrich@ (42)
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- Hume, David@ (22)
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- Moore, G.E.@ (9)
- Plato@ (56)
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- Singer, Peter@ (58)
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- Weil, Simone@ (6)
- Zeno of Citium@ (1)
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