Now what the Logic shows is that, on one hand, all these terms are ideal and regulative; and on the other that they are real, because constitutive of reality. Showing--or shall we say, reminding us--that being is after all a form of thought, it shows us that knowledge, at the other end, contains or implies reality. It is the business of logic as a fundamental philosophy to dispel the illusion that sensations are fixed reality: that causes and effects are an absolutely real order; whereas concepts and sciences and still more aesthetic and moral principles are not. Its doctrine is that all Our thought-terms, the most vulgar and the most delicate, are, as we may put it, symbolical of reality: explications and manifestations of it. Absolutely real--if that means utterly unideal--none of them are. On the other hand, absolutely ideal,--if that means utterly unreal--none of them are either. If you call them real, their reality is that of thought. If you call them ideal, it is an ideality of a real. Being is not a fixed and solid substratum, a hard rock of reality, on which we may build our relations and further determinations. It also is a thought: it also lives in relation, and becomes more real by further determination.[2] But the habit comes natural to the majority to attribute essential and independent reality (total reality) to the thought-modes it is familiar with in practice: whereas the modes familiar to more advanced intelligence are put aside as merely ideal. Thus in proportion as Logic insists on the reality of idea, it insists also on the ideality of being. Being is after all a thought: when separate from the relations of experience, a very poor thought. A 'supreme being' even is a thought. And the question of questions for Logic is what degree of reality, what amount of truth does each result of unification express. Is it self-consistent and complete, or does it imply further elements, and if so, in what direction does it suggest and receive completion? But at the best the reality of a logical term is an abstract or formal reality, and consists in its power to interpret, to expound, to define the Absolute. Its more concrete and material reality it has in Nature and in Mind. There however Philosophy has in a further measure to repeat its earlier lesson and show that Nature is not without its ideal aspect, and that Mind is founded on physical reality.