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πυροῖς

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

French (Bailly abrégé)

v. πῦρ.

Russian (Dvoretsky)

πῠροῖς: поэт. πῠροῖσι dat. pl. к πῦρ.