уравновешенный
From LSJ
Ἓν οἶδα, ὅτι οὐδὲν οἶδα → I know only one thing, that I know nothing | all I know is that I know nothing.
Russian > Greek
σωφρονικός, εὔτακτος, ἀπερίσπαστος, θεμερῶπις, εὐόργητος, θέμερος, καταστηματικός, κατεσταλμένος, εὐσταθής, ἐϋσταθής