EN 1103b17-22 The dispositions of character come into being by engaging in similar activities

ὁμοίως δὲ καὶ τὰ περὶ τὰς ἐπιθυμίας ἔχει καὶ τὰ περὶ τὰς ὀργάς· οἳ μὲν γὰρ σώφρονες καὶ πρᾶοι γίνονται, οἳ δ' ἀκόλαστοι καὶ ὀργίλοι, οἳ μὲν ἐκ τοῦ οὑτωσὶ ἐν αὐτοῖς ἀναστρέφεσθαι, οἳ δὲ ἐκ τοῦ οὑτωσί. καὶ ἑνὶ δὴ λόγῳ ἐκ τῶν ὁμοίων ἐνεργειῶν αἱ ἕξεις γίνονται.