For the beginning is thought to be more than half of the whole, and many of the questions we ask are cleared up by it. We must consider it, however, in the light not [10] only of our conclusion and our premisses, but also of what is commonly said about it; for with a true view all the data harmonize, but with a false one the facts soon clash. Now goods have been divided into three classes,1 and some are described as external, others as relating to soul or to body; we call those that relate to soul