[91] [cap.25] Let this then be enough to say concisely about the essence of the soul. And now proceeding in regular order, we will explain the expression, that "the voice of his blood cries out," in this manner, —of our soul, one part is dumb, and one part is endowed with utterance. All that part which is devoid of reason is likewise destitute of voice, but all that part which is rational is capable of speech, and that part alone has formed any conception of God; for, by the other parts of us, we are not able to comprehend God, or any other object of the intellect.