20 AFRICAN POLITICAL SYSTEMS That part of it which h$s already been stated is, perhaps, least controversial. But it is incomplete. Any item of social behaviour, and therefore any political relation, has a utilitarian or pragmatic content. It means that material goods change hands, are disbursed or acquired, and that the direct purposes of individuals are achieved. Items of social behaviour and therefore political relations have also a moral aspect; that is, they express rights and duties, privileges and obligations, political sentiments, social ties and cleavages. We see these two aspects clearly in such acts as paying tribute to a ruler or handing over blood-cattle in compensation for murder. In political relations, consequently, we find two types of interests working conjointly, material interests and moral interests, though they are not separated in this abstract way in native thought. Natives stress the material components of a political relation and generally state it in terms of its utilitarian and pragmatic functions. A particular right or duty or political sentiment occurs as an item of behaviour of an individual or a small section of an African society and is enforceable by secular sanctions brought to bear on these individuals or small sections. But in a politically organized community a particular right, duty, or sentiment exists only as an element in a whole body of common, reciprocal, and mutually balancing rights, duties, and sentiments, the body of moral and legal norms. Upon the regularity and order with which this whole body of interwoven norms is maintained depends the stability and continuity of the structure of an African society. On the average, rights must be respected, duties performed, the sentiments binding the members together upheld or else the social order would be so insecure that the material needs of existence could no longer be satisfied. Productive labour would come to a standstill and the society disintegrate. This is the greatest common interest in any African society, and it is this interest which the political system, viewed in its entirety, subserves. This, too, is the ultimate and, we might say, axiomatic set of premisses of the social order. If they were continually and arbitrarily violated, the social system would cease to work. We can sum up this analysis by saying that the material interests that actuate individuals or groups in an African society operate in the frame of a body of interconnected moral and legal norms the order and stability of which is maintained by the political