Our lists of parallels, however, though (with the exception of List B) they are arranged to bring out this duality of origin, have other and more vital uses as material for exercises.

In addition to the Essays in Criticism, the other works of Arnold that possess his fine critical dualities in highest degree are On Translating Homer (1861) and The Study of Celtic Literature (1867).

There was a duality about her nature as if the blood of two races were mingling in her veins.

And this is where the importance of realizing the Singleness of the Originating Power comes in, for with a Duality each member would limit the other; in fact, Duality as the Originating Power is inconceivable, for, once more to quote "Paddy's Philosophy," "finality would be reached before anything was begun.