Whenever we do something wrong, then, from now on we will not blame anything except the opinion on which it’s based; and we will try to root out wrong opinions with more determination than we remove tumours or infections from the body. [36] By the same token, we will acknowledge opinion as the source of our good behaviour too. [37] But wife, child, slave or neighbour – in the future we won’t name any of them as authors of the evil in our lives, in the knowledge that, unless we judge things in a particular light, we won’t act in the corresponding manner. And we, not externals, are the masters
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