Sextus Empiricus Pyrrhoniae Hypotyposes 1.34.238

[238] So then, just as the Sceptic, in virtue of the compulsion of the affections, is guided by thirst to drink and by hunger to food, and in like manner to other such objects, in the same way the Methodical physician is guided by the pathological affections to the corresponding remedies—by contraction to dilatation, as when one seeks refuge in heat from the contraction due to the application of cold, or by fluxion to the stoppage of it, as when persons in a hot bath, dripping with perspiration and in a relaxed condition, seek to put a stop to it and for this reason rush off into the cool air. It is plain, too, that conditions which are naturally alien compel us to take measures for their removal, seeing that even the dog when it is pricked by a thorn proceeds to remove it.