ἐξασκητέον
From LSJ
ἔστι γὰρ τὸ ἔλαττον κακὸν μᾶλλον αἱρετὸν τοῦ μείζονος → the lesser of two evils is more desirable than the greater
English (LSJ)
A one must practise, σωφροσύνην Nicostr. ap. Stob. 4.23.65.
Spanish (DGE)
hay que practicar, ejercitar σωφροσύνην Nicostr. en Stob.4.23.65.