Every man is worth just so much as the things are worth about which he busies himself.[ὅτι τοσούτου ἄξιος ἕκαστόςἐστιν, ὅσου ἄξιά ἐστι ταῦτα περὶ ἃ ἐσπούδακεν.]

Source:Meditations (ed. A. L. Burt, 1896), (tr. Long), Book 7, #3, Page 208
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