text:  But in the tangled study of the law where one must go backwards and forwards as in a rope-walk and twist one's own cable out of many threads--of what use can the lecturer possibly be? To teach us law in a fluent discourse what is it but to have us feed--as the humming-birds are said to do--upon the wing? But even humming-birds feed in no such fashion; they sit down to their supper of rose-water