Kalos kagathos
Kalos kagathos or kalokagathos (Ancient Greek: καλὸς κἀγαθός [kalòs kaːɡatʰós]), of which kalokagathia (καλοκαγαθία) is the derived noun, is a phrase used by classical Greek writers to describe an ideal of gentlemanly personal conduct, especially in a military context. Its use is attested since Herodotus and the classical period.