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Ἓν οἶδα, ὅτι οὐδὲν οἶδα → I know only one thing, that I know nothing | all I know is that I know nothing.
subs.
P. and V. ἔχθρα, ἡ, ἔχθος, τό; see dislike, hostility.
Opposition: P. ἐναντίωσις, ἡ.
Discord: P. and V. ἔρις, ἡ.