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be matter of opinion

Μή, φίλα ψυχά, βίον ἀθάνατον σπεῦδε, τὰν δ' ἔμπρακτον ἄντλει μαχανάν -> Oh! my soul do not aspire to eternal life, but exhaust the limits of the possible
Pindar, Pythian, 3.61f.

English > Greek (Woodhouse Extra)

be matter of opinion = ἀμφισβητεῖσθαι