WEhavetreatedofthatwhichisprimarilyandtowhichallthe
othercategoriesofbeingarereferred-i。e。ofsubstance。Foritisin
virtueoftheconceptofsubstancethattheothersalsoaresaidto
be-quantityandqualityandthelike；forallwillbefoundtoinvolve
theconceptofsubstance，aswesaidinthefirstpartofourwork。