Epictetus · That the reasoning faculties, in the case of the uneducated, are not free from error
Discourses 1.8
In as many ways as it is possible to vary the meaning of equivalent terms, in so many ways may a man also vary the forms of his controversial arguments and of his enthymemes in reasoning. Take this syllogism, for instance: If you have borrowed and have not repaid, you owe me the money; now you have not borrowed and have not repaid; therefore you do not owe me the money. And no man is better fitted to employ such variations skilfully than the philosopher. For if, indeed, the enthymeme is an incomplete syllogism, it is clear that he who has been exercised in the perfect syllogism would be no less competent to deal with the imperfect also.
Why, then, do we neglect to exercise ourselves and one another in this way? Because, even now, without receiving exercise in these matters, or even being, by me at least, diverted from the study of morality, we nevertheless make no progress toward the beautiful and the good. What, therefore, must we expect, if we should take on this occupation also? And especially since it would not merely be an additional occupation to draw us away from those which are more necessary, but would also be an exceptional excuse for conceit and vanity. For great is the power of argumentation and persuasive reasoning, and especially if it should enjoy excessive exercise and receive likewise a certain additional ornament from language. The reason is that, in general, every faculty which is acquired by the uneducated and the weak is dangerous for them, as being apt to make them conceited and puffed up over it. For by what device might one any longer persuade a young man who excels in these faculties to make them an appendage to himself instead of his becoming an appendage to them? Does he not trample all these reasons under foot, and strut about in our presence, all conceited and puffed up, much less submitting if any one by way of reproof reminds him of what he lacks and wherein he has gone astray?
What then? Was not Plato a philosopher? Yes, and was not Hippocrates a physician? But you see how eloquently Hippocrates expresses himself. Does Hippocrates, then, express himself so eloquently by virtue of his being a physician? Why, then, do you confuse things that for no particular reason have been combined in the same man? Now if Plato was handsome and strong, ought I to sit down and strive to become handsome, or become strong, on the assumption that this is necessary for philosophy, because a certain philosopher was at the same time both handsome and a philosopher? Are you not willing to observe and distinguish just what that is by virtue of which men become philosophers, and what qualities pertain to them for no particular reason? Come now, if I were a philosopher, ought you to become lame like me? What then? Am I depriving you of these faculties? Far be it from me! No more than I am depriving you of the faculty of sight. Yet, if you enquire of me what is man's good, I can give you no other answer than that it is a kind of moral purpose.
Epictetus, Discourses 1.8, translated by W. A. Oldfather
In as many ways as we can change things which are equivalent to one another, in just so many ways we can change the forms of arguments (ἐπιχειρήματα) and enthymemes (ἐνθυμήματα) in argumentation. This is an instance: if you have borrowed and not repaid, you owe me the money you have not borrowed and you have not repaid; then you do not owe me the money. To do this skilfully is suitable to no man more than to the philosopher; for if the enthymeme is an imperfect syllogism, it is plain that he who has been exercised in the perfect syllogism must be equally expert in the imperfect also.
Why then do we not exercise ourselves and one another in this manner? Because, I reply, at present, though we are not exercised in these things and not distracted from the study of morality, by me at least, still we make no progress in virtue. What then must we expect if we should add this occupation? and particularly as this would not only be an occupation which would withdraw us from more necessary things, but would also be a cause of self-conceit and arrogance, and no small cause. For great is the power of arguing and the faculty of persuasion, and particularly if it should be much exercised, and also receive additional ornament from banguage: and so universally, every faculty acquired by the uninstructed and weak brings with it the danger of these persons being elated and inflated by it. For by what means could one persuade a young man who excels in these matters, that he ought not to become an appendage to them, but to make them an appendage to himself? Does he not trample on all such reasons, and strut before us elated and inflated, not enduring that any man should reprove him and remind him of what he has neglected and to what he has turned aside?
What then was not Plato a philosopher? I reply, and was not Hippocrates a physician? but you see how Hippocrates speaks. Does Hippocrates then speak thus in respect of being a physician? Why do you mingle things which have been accidentally united in the same men? And if Plato was handsome and strong, ought I also to set to work and endeavour to become handsome or strong, as if this was necessary for philosophy, because a certain philosopher was at the same time handsome and a philosopher? Will you not choose to see and to distinguish in respect to what men become philosophers, and what things belong to them in other respects? And if I were a philosopher, ought you also to be made lame? What then? Do I take away these faculties which you possess? By no means; for neither do I take away the faculty of seeing. But if you ask me what is the good of man, I cannot mention to you anything else than that it is a certain disposition of the will with respect to appearances.
Epictetus, Discourses 1.8, translated by George Long
Just as it is possible to interchange terms which are equivalent to one another, so and in just as many ways it is allowable to vary in argument the types of disputative argument and enthymeme. Take for instance this kind of argument: 'If you borrowed and did not repay, you owe me the money. You did not borrow without repaying; therefore you do not owe me the money.' And the philosopher above all others is the proper person to handle such arguments with skill. For if enthymeme is imperfect syllogism, plainly he who is trained in perfect syllogism would be equally capable in dealing with imperfect.
Why then, you ask, do we not train ourselves and one another in this style of argument? Because even now, though we do not devote ourselves to training in these matters and though we are not drawn away, so far as I have any influence, from cultivating character, nevertheless we make no advance towards goodness. What should we have to expect then, if we should add this business to our other employments? And there is more—not only should we have less leisure for more necessary things, but we should give uncommon occasion for conceit and vanity. For the faculty of disputative and plausible reasoning is a powerful one, especially if it should be developed by training and gain further dignity from mastery of language. For indeed generally every faculty is dangerous when it comes into the hands of those who are without education and without real force, for it tends to exalt and puff them up. For how would it be possible to persuade the young man who excels in these arguments that he ought not to become dependent upon them, but to make them depend upon him? Instead of this he tramples under foot all we say to him and walks among us in a high state of elation, so puffed up that he cannot bear that any one should remind him how far he has fallen short and into what errors he has lapsed.
'What do you mean? Was not Plato a philosopher?'
I reply, Was not Hippocrates a physician? But you see how eloquent Hippocrates was. Was Hippocrates so eloquent by virtue of being a physician? Why then do you mix qualities, which are casually united in the same persons? Suppose Plato was handsome and strong; ought I also to set to and strive to become handsome or strong, as though this were necessary for philosophy, just because one philosopher was handsome as well? Will you not have the discernment to see what makes men philosophers and what qualities are accidental in them? Suppose now I were a philosopher, ought you to become lame?
You ask me, do I then count these faculties as of no effect?
Heaven forbid! no more than I ignore the faculty of vision. Nevertheless if you ask me what is the true good of man, I can only say to you that it lies in a certain disposition of the will.
Epictetus, Discourses 1.8, translated by P. E. Matheson