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αὐτῷ

Ὁ δ' ἀνεξέταστος βίος οὐ βιωτὸς ἀνθρώπῳ -> The unexamined life is not worth living
Plato, Apology of Socrates 38a

French (Bailly abrégé)

dat. de αὐτός.

Russian (Dvoretsky)

αὐτῷ: dat. к αὐτός.