ξένῳ δὲ σιγᾶν κρεῖττον ἢ κεκραγέναι → it's better for a stranger to keep silence than to shout (Menander)
P. and V. σύνεσις, ἡ, τὸ συνετόν, γνώμη, ἡ, φρόνησις, ἡ.
foresight: P. and V. πρόνοια, ἡ, P. προμήθεια. ἡ, V. προμηθία, ἡ.
power to distinguish: P. and V. διάγνωσις, ἡ.
perception: P. and V. αἴσθησις, ἡ.