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