Problemata (Problems)

They say that the cause of this difficulty in treatment dustherapeusia: a medical term for a condition that resists healing
arises from the fact that, while the underlying size remains the same,
another size is added because of the cross-division original: "epidiairesh" (ἐπιδιαίρεσις); likely referring to the surgical practice of cutting or scoring the edges of a wound.
As a result, these ulcers helkē: open sores or lesions become even
harder to cure. However, Asclepiades Asclepiades of Bithynia (c. 124–40 BC) was an influential physician who rejected the theory of "humors," believing instead that health depended on the free movement of atoms through pores in the body
himself provides the actual cause. For he says that
in every body, movement kinēsis: the physical motion or flux of matter is
an innate property. Thus, a violent movement also
occurs at their "principles." By "principles," he
means the centers of those things which are moving.
He clarifies this by using using examples
such as the movement of rivers and that of
fire. For just as in these cases, the centers
move most and with the greatest violence, so
it happens with ulcers. For it is just
like what occurs in rivers:
in the part where the volume is greatest,
the movement becomes more violent. And it is clear
that the center is the part that is greatest,
for that is where the majority of the flow
especially converges. The same logic also
applies to the flame of fire; for...