What was some time ago remarked respecting the Idea, may be applied to this common usage of the term 'speculation': and we may add that people who rank themselves amongst the educated expressly speak of speculation even as if it were something purely subjective. A certain theory of some conditions and circumstances of nature or mind may be, say these people, very fine and correct as a matter of speculation, but it contradicts experience and nothing of the sort is admissible in reality. To this the answer is, that the speculative is in its true signification, neither preliminarily nor even definitively, something merely subjective: that, on the contrary, it expressly rises above such oppositions as that between subjective and objective, which the understanding cannot get over, and absorbing them in itself, evinces its own concrete and all-embracing nature. A one-sided proposition therefore can never even give expression to a speculative truth. If we say, for example, that the absolute is the unity of subjective and objective, we are undoubtedly in the right, but so far one-sided, as we enunciate the unity only and lay the accent upon it, forgetting that in reality the subjective and objective are not merely identical but also distinct. Speculative truth, it may also be noted, means very much the same as what, in special connexion with religious experience and doctrines, used to be called Mysticism. The term Mysticism is at present used, as a rule, to designate what is mysterious and incomprehensible: and in proportion as their general culture and way of thinking vary, the epithet is applied by one class to denote the real and the true, by another to name everything connected with superstition and deception. On which we first of all remark that there is mystery in the mystical, only however for the understanding which is ruled by the principle of abstract identity; whereas the mystical, as synonymous with the speculative, is the concrete unity of those propositions, which understanding only accepts in their separation and opposition. And if those who recognise Mysticism as the highest truth are content to leave it in its original utter mystery, their conduct only proves that for them too, as well as for their antagonists, thinking means abstract identification, and that in their opinion, therefore, truth can only be won by renouncing thought, or as it is frequently expressed, by leading the reason captive. But, as we have seen, the abstract thinking of understanding is so far from being either ultimate or stable, that it shows a perpetual tendency to work its own dissolution and swing round into its opposite. Reasonableness, on the contrary, just, consists in embracing within itself these opposites as unsubstantial elements. Thus the reason-world may be equally styled mystical,--not however because thought cannot both reach and comprehend it, but merely because it lies beyond the compass of understanding.