Any mention of Essence implies that we distinguish it from Being: the latter is immediate, and, compared with the Essence, we look upon it as mere seeming. But this seeming is not an utter nonentity and nothing at all, but Being superseded and put by. The point of view given by the Essence is in general the standpoint of 'Reflection.' This word 'reflection' is originally applied, when a ray of light in a straight line impinging upon the surface of a mirror is thrown back from it. In this phenomenon we have two things,--first an immediate fact which is, and secondly the deputed, derivated, or transmitted phase of the same.--Something of this sort takes place when we reflect, or think upon an object; for here we want to know the object, not in its immediacy, but as derivative or mediated. The problem or aim of philosophy is often represented as the ascertainment of the essence of things: a phrase which only means that things instead of being left in their immediacy, must be shown to be mediated by, or based upon, something else. The immediate Being of things is thus conceived under the image of a rind or curtain behind which the Essence lies hidden. Everything, it is said, has an Essence; that is, things really are not what they immediately show themselves. There is therefore something more to be done than merely rove from one quality to another, and merely to advance from qualitative to quantitative, and _vice versâ:_ there is a permanent in things, and that permanent is in the first instance their Essence. With respect to other meanings and uses of the category of Essence, we may note that in the German auxiliary verb _'sein'_ the past tense is expressed by the term for Essence (_Wesen_): we designate past being as _gewesen._ This anomaly of language implies to some extent a correct perception of the relation between Being and Essence. Essence we may certainly regard as past Being, remembering however meanwhile that the past is not utterly denied, but only laid aside and thus at the same time preserved. Thus, to say, Caesar _was_ in Gaul, only denies the immediacy of the event, but not his sojourn in Gaul altogether. That sojourn is just what forms the import of the proposition, in which however it is represented as over and gone.--'_Wesen_' in ordinary life frequently means only a collection or aggregate: Zeitungswesen (the Press), Postwesen (the Post-Office), Steuerwesen (the Revenue). All that these terms mean is that the things in question are not to be taken single, in their immediacy, but as a complex, and then, perhaps, in addition, in their various bearings. This usage of the term is not very different in its implication from our own.