The best interpretation of Galen's picture is that disease causal powers reduce to fundamental quality interactions, even if the complex hypothetical account is not spelled out

In the pathological area it seems more difficult to see the relevance of the teleological cause. (ii) Galen does seems to think that a sufficiently full account of the internal and external low-level conditions should be fully predictive of the disease outcome (this, then, will be a question of understanding in sufficient detail the preceding and antecedent causes). (iii) Certainly fevers are hot diseases and, moreover, their individual differences—as well as the treatment indicated—are to a con