οἱ προϋπάρχοντες τῷ ποιεῖν εὖ

From LSJ

καὶ ἥ γε ἀνία τὸ ἐμποδίζον τοῦ ἰέναιsorrow is that which hinders motion

Source

English > Greek (Woodhouse Quotes Reversed)

those who are the first to confer a favour