νοῦν προσέχειν

From LSJ

Μακάριος, ὅστις οὐσίαν καὶ νοῦν ἔχειFelix, qui mentem cum divitiis possidet → Glückselig, wer Vermögen und Vernunft besitzt

Menander, Monostichoi, 340

Greek > English (Woodhouse)

address oneself to, be alive to, devote attention to