κακὸν φέρουσι καρπὸν οἱ κακοὶ φίλοι → evil friends bear evil fruit, wicked friends bear wicked fruit, bad friends bear bad fruit
P. and V. μεμπτός, ἐπαίτιος, V. ἐπίμομφος, μωμητός, P. ψεκτός (Plato).