Thus according to the analogy of realities in the world, of substances, causality, and necessity, I will think of a being that possesses all of these in their highest perfection, and since this idea rests merely on my reason, I am able to think this being as selfsufficient reason, which is the cause of the world whole through ideas of the greatest harmony and unity; thus I leave out all conditions limiting the idea, so as under the auspicese of such an original ground to make possible systematic unity of the manifold in the world whole and, by means of this unity, the greatest possible empirical use of reason, by seeing all combinations as if they were ordained by a highest reason of which our reason is only a weak copy.