There is one topic which has never ceased to be discussed over half a century under a variety of headings but with no satisfactory outcome.
“Mae llawer o’r materion yr ydym wedi tynnu sylw atynt wedi cael eu nodi a’u trafod o’r blaen, ond ni fu gweithredu i’w datrys mewn unrhyw ffordd systematig na chynaliadwy.”