173c-d (tr. W.R.M. Lamb):
For my own part, indeed, I commonly find that, setting aside the benefit I conceive they do me, I take an immense delight in any philosophic discourses, whether I speak them myself or hear them from others: whereas in the case of other sorts of talkespecially that of your wealthy, money-bag friendsI am not only annoyed myself but sorry for dear intimates like you, who think you are doing a great deal when you really do nothing at all.
καὶ γὰρ ἔγωγε καὶ ἄλλως, ὅταν μέν τινας περὶ φιλοσοφίας λόγους ἢ αὐτὸς ποιῶμαι ἢ ἄλλων ἀκούω, χωρὶς τοῦ οἴεσθαι ὠφελεῖσθαι ὑπερφυῶς ὡς χαίρω: ὅταν δὲ ἄλλους τινάς, ἄλλως τε καὶ τοὺς ὑμετέρους τοὺς τῶν πλουσίων καὶ χρηματιστικῶν, αὐτός τε ἄχθομαι ὑμᾶς τε τοὺς ἑταίρους ἐλεῶ, ὅτι οἴεσθε τὶ ποιεῖν οὐδὲν ποιοῦντες.