ἀντιμάχησις
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.
English (LSJ)
εως, ἡ,
A conflict, struggle, ἐπ' ἀλλήλοις D.H.8.58.