Chapter XIX. Against the Philosophers of the School of Aristippus, Who Say That Only Feelings Can Be Apprehended, and That of Other Things There is No Apprehension. From the Same

‘NEXT in order will be those who say that the feelings alone are conceptional, and this was asserted by some of the Cyrenaics. For they, as if oppressed by a kind of torpor, maintained that they knew nothing at all unless some one standing by struck and pricked them; for when burned or cut, they said, they knew that they felt something, but whether what burned them was fire, or what cut them iron, they could not tell.

‘Men then who talk thus one might immediately ask, whether they at all events know this that they suffer and feel something. For if they do not know, neither could they say that they know only the feeling: if on the other hand they know, the feelings cannot be the only things conceptional. For “I am being burned” was a statement, and not a feeling.

‘Moreover these three things must necessarily subsist together, the suffering itself, and that which causes it, and that which suffers. The man therefore who perceives the suffering must certainly by sensation feel the sufferer. For surely he will not know that some one is being warmed, it may be, without knowing whether it is himself or his neighbour; and whether now or last year, and whether at Athens or in Egypt, whether alive or dead, and moreover whether a man or a stone.

‘Therefore he will also know by what he suffers: for men know one another, and roads, and cities, and their food. Artisans again know their own tools, and physicians and sailors prognosticate what is going to happen, and dogs discover the tracks of wild beasts.

‘Moreover the man who suffers anything certainly perceives it either as something affecting himself or as another’s suffering. Whence therefore will he be able to say that this is pleasure, and that pain? Or that he felt something by taste, or sight, or hearing? And by tasting with his tongue, and seeing with his eyes, and hearing with his ears? Or how do they know that it is right to choose this, and avoid that? But supposing them to know none of these things, they will have no impulse nor desire; and so would not be living beings. For they are ridiculous, whenever they say that these things have happened to them, but that they do not know how or in what manner. For such as these could not even say whether they are human beings, nor whether they are alive, nor, therefore, whether they say and declare anything.

‘What discussion then can there be with such men as these? One may wonder, however, if they know not whether they are upon earth or in heaven; and wonder still more, if they do not know, though they profess to study this kind of philosophy, whether four are more than three, and how many one and two make. For being what they are they cannot even say how many fingers they have on their hands, nor whether each of them is one or more.

‘So they would not even know their own name, nor their country, nor Aristippus: neither therefore whom they love or hate, nor what things they desire. Nor, if they were to laugh or cry, would they be able to say, that is laughable, and that painful. It is evident therefore that we do not even know what we are now saying. Such men therefore as these would be no better than gnats or flies, though even those animals know what is natural and unnatural.’

Although there are endless arguments that one might use against men in this state of mind, yet these are sufficient. The next thing is to join them in examining those who have taken the opposite road, and decided that we ought to believe the bodily senses in everything, among whom are Metrodorus of Chios, and Protagoras of Abdera.

Metrodorus then was said to have been a hearer of Democritus, and to have declared ‘plenum’ and ‘vacuum’ to be first principles, of which the former was ‘being,’ and the latter ‘not-being.’ So in writing about nature he employed an introduction of this kind,[1] ‘None of us knows anything, not even this, whether we know or do not know’: an introduction which gave a mischievous impulse to Pyrrho who came afterwards. Then he went on to say that ‘all things are just what any one may think them.’

And as to Protagoras it is reported that he was called an atheist. In fact he, too, in writing about the gods used this sort of introduction: [2]

‘So as to gods I know not either that they exist, nor what their nature is: for there are many things that hinder me from knowing each of these points.’

This man the Athenians punished by banishment, and burned his books publicly in the middle of the marketplace. Since then these men asserted that we must believe our senses only, let us look at the arguments urged against them (by Aristocles). [3]