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
pyrites, ignitabulum, silex
