εἰς τὸ δεκαπλάσιον

From LSJ

φιλοκαλοῦμέν τε γὰρ μετ' εὐτελείας καὶ φιλοσοφοῦμεν ἄνευ μαλακίας → our love of what is beautiful does not lead to extravagance; our love of the things of the mind does not makes us soft

Source

Dutch (Woordenboekgrieks.nl)

tot in het tienvoudige Plut. CMa 18.2.