Theoria pathologica de dolore

in all instruments of sensing.

XXXIII.

Nevertheless, it seemed to many to assert that Pain is properly the symptom of Touch, and of other senses only by accident.

XXXIV.

Since Touch is spread throughout the whole body: and the qualities bringing Pain to the remaining senses are proper to Touch: indeed, from Timaeus 4, On the Faculties of Simple Medicines, the senses of Tastes (to which odors respond by proportion) are accommodated to the alterations of Touch.

XXXV.

Touch is even built up as the common [sense] of all sensory organs, On the Differences of Symptoms, ch. 3.

XXXVI.

As far as primary qualities are concerned, Galen rightly asserted that Heat, Coldness, Moisture, and Dryness cause Pain, in the book On Unequal Intemperance, and in the Small Art, ch. 80.

XXXVII.

Nor was he forgetful of himself, while in 1, On the Causes of Symptoms, and 12 Method, he excluded Passive [qualities].

XXXIIX.

For Active [qualities] operate in one way, Passive [qualities] in another, and those simply and conjoined with some humor in yet another, and they operate by reason of quality and quantity.

I would touch upon the differences of Pain, if I did not think it sufficient to have proposed—in a very difficult matter (which such a variety of opinions shows)—abundant material for disputing in the remainder, or even lightly, according to the plan.