It is just in thinking all these elements in an active originating Unit-thought, or an "I," that the essential and characteristic nature of man or any other real intelligence consists. Such an originating Unit-thinking, providing its own element-complex of primal thoughts that condition its experience, and that thus provide for that experience the form of a cosmic Evolutional Series, is precisely what an intelligent being is. Thus creatively to think and be a World is what it means to be a man. To think and enact such a world merely in the unity framed for it by natural causation, is what it means to be a "natural" man; to think and enact it in its higher unity, its unity as framed by the supernatural causation of the Pure Ideals, supremely by the Moral Ideal, is what it means to be a "spiritual" man, a moral and religious man; or, in the philosophical and true sense of the words, a supernatural being — a being transcending and yet including Nature, not excluding or annulling it.

Here we reach the demonstration that evolution not only is a fact, and a fact of cosmic extent, but is a necessary law a priori over Nature. But we learn at the same time, and upon the same evidence, that it cannot in any wise affect the a priori consciousness, which is the essential being and true person of the mind; much less can it originate this. On the contrary, we have seen it is in this a priori consciousness that the law of evolution has its source and its warrant. Issuing from the noumenal being of mind, evolution has its field only in the world of the mind's experiences, — "inner" and "outer," physical and psychic; or, to speak summarily, only in the world of phenomena. But there, it is indeed universal and strictly necessary.

Here, in seeing that Final Cause — causation at the call of self-posited aim or end — is the only full and genuine cause, we further see that Nature, the cosmic aggregate of phenomena and the cosmic bond of their law which in the mood of vague and inaccurate abstraction we call Force, is after all only an effect.

He [Kant] suggested that experience may be not at all simple, but always complex, so that the very possibility of the experience which seems to the empiricist the absolute foundation of knowledge may depend on the presence in it of a factor that will have to be acknowledged as a priori. This factor issues from the nature of the mind that has the experience, and introduces into experience all that distinguishableness, that arrangedness, and that describable form, without which it could not be conceived as apprehensible or intelligible, that is, as an experience at all.

The question whether we have not some knowledge independent of any and all experience — whether there must not, unavoidably, be some knowledge a priori, some knowledge which we come at simply by virtue of our nature — is really the paramount question, around which the whole conflict in philosophy concentrates, and on the decision of which the settlement of every other question hangs. To cast the career of a philosophy upon a negative answer to it, as if this were a matter of course, — which the English school from Hobbes onward has continually done, — is to proceed not only upon a petitio, but upon a delusion regarding the security of the road.

The agnostic position, the largest historic view of philosophy would say, is an unwarrantable arrest of the philosophic movement of reason; and its unjustifiable character appears in the fact, which can clearly be shown, that it involves at once a petitio and a self-contradiction.

For the very quality of personality is, that a person is a being who recognises others as having a reality as unquestionable as his own, and who thus sees himself as a member of a moral republic, standing to other persons in an immutable relationship of reciprocal duties and rights, himself endowed with dignity, and acknowledging the dignity of all the rest.

The achievement of this task depends on attaining to the true distinction, the real relation, between the two orders of existence which to ordinary and uncritical reflexion — usual common-sense — appear as two substances, so called, or species of substance, and are named "mind" and "matter." What is to be shown is, that this common-sense contrast, read off as a hard-and-fast dualism, is not intelligibly interpretable except as the distinction between two aspects of one and the same total nature in the beings that possess it

Thus the world of minds, as the sole world of Ends presupposed in all moral responsibility, the world of ultimate and standard Objects, becomes at one and the same stroke the warranting foundation of knowledge and of good-will alike: to refuse good-will is to violate the primary principle of each mind's own existence, and is therefore to convict oneself, in one and the same act, of irrationality and folly as well as of indifference or of ill-will.

The members of this Eternal Republic have no origin but their purely logical one of reference to each other, including thus their primary reference to God. That is, in the literal sense of the word, they have no origin at all — no source in time whatever. There is nothing at all, prior to them, out of which their being arises; they are not "things" in the chain of efficient causation. They simply are, and together constitute the eternal order.

Time and Space, and all that both "contain," owe their entire existence to the essential correlation and coexistence of minds. This coexistence is not to be thought of as either their simultaneity or their contiguity. It is not at all spatial, nor temporal, but must be regarded as simply their logical implication of each other in the self-defining consciousness of each. And this recognition of each other as all alike self-determining, renders their coexistence a moral order.

Instead of any monism, these essays put forward a Pluralism: they advocate an eternal or metaphysical world of many minds, all alike possessing personal initiative, real self-direction, instead of an all-predestinating single Mind that alone has real free-agency.