Theoria pathologica de dolore

XXVI.
Fourthly, some finally assert that both causes cannot be separated, which we rejected above: indeed, even if we were to grant it, we would by no means concede that both can be the immediate cause simultaneously.

XXVII.
But that also does not please us: that besides intemperance and the solution of unity, some have attempted to intrude Distension as a private cause of pain: for Galen correctly referred it to the division of the continuum.

XXIIX.
The opinion of Plato in the Timaeus and Philebus concerning the manner of the efficient cause of Pain looks toward this as well: that which happens to us violently and contrary to nature, all at once, is a painful passion. Although Galen approved of this in book 1, On the Causes of Symptoms, ch. 6, he nevertheless brings forward a doubt.

XXIX.
For they think it is concluded that it is held contrary in book 12, Method, ch. 7, and elsewhere, and fights much with the truth, because even according to the mind of Galen, the painful part is eased by a light and slow contact: and a puncture, whether it happens suddenly or gradually, manifestly creates pain.

XXX.
However, the example concerning cooled nails, proposed by Galen, frees it from inconsistency, just as others, and the brought-forward [arguments] do not shatter the truth of the Platonic opinion: but, besides other things, it illuminates and confirms it through the power of action, which philosophers rightly assert is greater and superior to passion.

XXXI.
A greater question is about the Matter of Pain: which, although we have already acknowledged with everyone that it is a sensible part, it is nevertheless disputed whether it happens in all sensory organs, or in touch alone.

XXXII.
To Galen, who affirms this for all in book 1, On the Causes of Symptoms, ch. 6, it is favored that we see pleasure manifestly made by reason of its proper essence in...