Bion of Borysthenes, fragment 42a Kindstrand = Stobaeus 4.31a.33 (tr. Robin Hard):
Bion used to say that just as shabby purses, even if they are of no value in themselves, are held to be of value in so far as they have money in them, so likewise, wealthy men who are of no worth are held to be of worth for what they possess.
The Greek, with simplified apparatus, from Jan Fredrik Kindstrand, Bion of Borysthenes: A Collection of the Fragments with Introduction and Commentary
(Stockholm: Almqvist & Wiksell, 1976 = Studia Graeca Upsaliensia, 11):
Βίων ἔλεγεν, ὥσπερ τὰ φαῦλα τῶν βαλλαντίων, κἂν μηδενὸς ᾖ ἄξια, τοσούτου ἐστὶν ἄξια ὅσον ἐν ἑαυτοῖς τὸ νόμισμα ἔχει, οὕτω καὶ τῶν πλουσίων τοὺς οὐδενὸς ἀξίους καρποῦσθαι τὰς ἀξίας ὧν κέκτηνται.
ἔχει Helm: ἔχουσιν codd.