text: I shared my time yesterday with ill health; it claimed for itself all the period before noon; in the afternoon, however, it yielded to me. And so I first tested my spirit by reading; then, when reading was found to be possible, I dared to make more demands upon the spirit, or perhaps I should say, to make more concessions to it. I wrote a little, and indeed with more concentration than usual, for I am struggling with a difficult subject and do not wish to be downed. In the midst of this, some friends visited me, with the purpose of employing force and of restraining me, as if I were a sick man indulging in some excess. So conversation was substituted for writing; and from this conversation I shall communicate to you the topic which is still the subject of debate; for we have appointed you referee. You have more of a task on your hands than you suppose, for the argument is threefold.