This theory is propounded by Comte, in his Positive Philosophy, English transl., 25, 26, 515-636—“Each branch of our knowledge passes successively through three different theoretical conditions: the Theological, or fictitious; the Metaphysical, or abstract; and the Scientific, or positive.... The first is the necessary point of departure of the human understanding; and the third is its fixed and definite state. The second is merely a state of transition. In the theological state, the human mind, seeking the essential nature of beings, the first and final causes, the origin and purpose, of all effects—in short, absolute knowledge—supposes all phenomena to be produced by the immediate action of supernatural beings. In the metaphysical state, which is only a modification of the first, the mind supposes, instead of supernatural beings, abstract forces, veritable entities, that is, personified abstractions, inherent in all beings, and capable of producing all phenomena. What is called the explanation of phenomena is, in this stage, a mere reference of each to its proper entity. In the final, the positive state, the mind has given over the vain search after absolute notions, the origin and destination of the universe, and the causes of phenomena, and applies itself to the study of their laws—that is, their invariable relations of succession and resemblance.... The theological system arrived at its highest perfection when it substituted the providential action of a single Being for the varied operations of numerous divinities. In the last stage of the metaphysical system, men substituted one great entity, Nature, as the cause of all phenomena, instead of the multitude of entities at first supposed. In the same way the ultimate perfection of the positive system would be to represent all phenomena as particular aspects of a single general fact—such as Gravitation, for instance.” This assumed law of progress, however, is contradicted by the following facts: (_a_) Not only did the monotheism of the Hebrews precede the great polytheistic systems of antiquity, but even these heathen religions are purer from polytheistic elements, the further back we trace them; so that the facts point to an original monotheistic basis for them all.