Against the Ethicists, Book XI of Against the Learned Section 149

τῷ γὰρ διὰ λιμὸν ἢ δίψος ὀχλουμένῳ οὐ δυνατὸν ἐμποιεῖν πεῖσμα διὰ τοῦ κατὰ τὴν σκέψιν λόγου, ὅτι οὐκ ὀχλεῖται, καὶ τῷ ἐν ταῖς τούτων παρηγορίαις διαχεομένῳ οὐκ ἐνδέχεται πειθὼ ἐμποιεῖν περὶ τοῦ ὅτι οὐ διαχεῖται.

For it is impossible, through Sceptical reasoning, to implant in someone distressed by hunger or thirst the conviction that he is not distressed; and it is impossible to persuade someone who is gladdened by relief from these that he is not gladdened.

Il n’est pas possible de persuader par le raisonnement sceptique celui que tourmentent la faim ou la soif qu’il n’est pas tourmenté ; et il n’est pas possible non plus de persuader celui que leurs soulagements réjouissent qu’il ne se réjouit pas.