. Within the original tribal association⁠—we are talking of primitive times⁠—each living generation recognises a legal obligation towards the earlier generation, and particularly towards the earliest, which founded the family (and this is something much more than a mere sentimental obligation, the existence of which, during the longest period of man’s history, is by no means indisputable). There prevails in them the conviction that it is only thanks to sacrifices and efforts of their ancestors, that the race persists at all⁠—and that this has to be paid back to them by sacrifices and services. Thus is recognised the owing