"Categorial elements are nothing but relations of self-identity, expressed by a function of appearing or measure of existential intensity. If relation does not create difference, we might say, it is because it creates identity itself" (Subject to Truth pp.314-5).
"... the differential relation between bodies/forces/etc, in which the two terms in the relation are brought together, their degree of power measured against one another, and given specific qualities on the basis of this. (like, in the determination of forces two forces come into contact and the one that is of a greater quantity of force is designated active, the other reactive...)."
"...the alternative to either of these singular positions [is] that both elements and relations can be accounted for only together, as co-implied in a single process that maintains the elementary integrity of what is related precisely insofar as it is related." (Subject to Truth p.315).