πείθεται πᾶς ἥδιον ἢ βιάζεται (Dio Cassius, Historiae Romanae 8.36.3) → it's always more pleasant to be persuaded than to be forced
dat. pl. de ἴς.
see ἴς.
ἴνεσι: эп. dat. pl. к ἴς.