εὖ παθὼν ἀντιδρᾶν

From LSJ

μεριμνᾷς καὶ τυρβάζῃ περὶ πολλά → you are worried and bothered about so many things, thou art careful and troubled about many things, you are worried and upset about many things

Source

Greek > English (Woodhouse)

benefit in return, repay with good, return good for good