From nature in herself (this result is clearly perceived from what precedes) we must ask nothing but a fixed beauty, that of the phenomena that she alone has determined according to the law of necessity. But with free arbitration, chance (the accidental), interferes in the work of nature, and the modifications that affect it thus under the empire of free will are no longer, although all behave according to its own laws, determined by these laws. From thence it is to the mind to decide the use it will make of its instruments, and with regard to that part of beauty which depends on this use, nature has nothing further to command, nor, consequently, to incur any responsibility.

And thus man by reason that, making use of his liberty, he raises himself into the sphere of pure intelligences, would find himself in danger of sinking, inasmuch as he is a creature of sense, and of losing in the judgment of taste that which he gains at the tribunal of reason. This moral destiny, therefore, accomplished by the moral action of man, would cost him a privilege which was assured to him by this same moral destiny when only indicated in his structure; a purely sensuous privilege, it is true, but one which receives, as we have seen, a signification and a higher value from the understanding. No; nature is too much enamored with harmony to be guilty of so gross a contradiction, and that which is harmonious in the world of the understanding could not be rendered by a discord in the world of sense.

As soon, then, as in man the person, the moral and free agent, takes upon himself to determine the play of phenomena, and by his intervention takes from nature the power to protect the beauty of her work, he then, as it were, substitutes himself for nature, and assumes in a certain measure, with the rights of nature, a part of the obligations incumbent on her. When the mind, taking possession of the sensuous matter subservient to it, implicates it in his destiny and makes it depend on its own modifications, it transforms itself to a certain point into a sensuous phenomenon, and, as such, is obliged to recognize the law which regulates in general all the phenomena. In its own interest it engages to permit that nature in its service, placed under its dependence, shall still preserve its character of nature, and never act in a manner contrary to its anterior obligations. I call the beautiful an obligation of phenomena, because the want which corresponds to it in the subject has its reason in the understanding itself, and thus it is consequently universal and necessary. I call it an anterior obligation because the senses, in the matter of beauty, have given their judgment before the understanding commences to perform its office.

Thus it is now free arbitration which rules the beautiful. If nature has furnished the architectonic beauty, the soul in its turn determines the beauty of the play, and now also we know what we must understand by charm and grace. Grace is the beauty of the form under the influence of free will; it is the beauty of this kind of phenomena that the person himself determines. The architectonic beauty does honor to the author of nature; grace does honor to him who possesses it. That is a gift, this is a personal merit.

Grace can be found only in movement, for a modification which takes place in the soul can only be manifested in the sensuous world as movement. But this does not prevent features fixed and in repose also from possessing grace. There immobility is, in its origin, movement which, from being frequently repeated, at length becomes habitual, leaving durable traces.

But all the movements of man are not capable of grace. Grace is never otherwise than beauty of form animated into movement by free will; and the movements which belong only to physical nature could not merit the name. It is true that an intellectual man, if he be keen, ends by rendering himself master of almost all the movements of the body; but when the chain which links a fine lineament to a moral sentiment lengthens much, this lineament becomes the property of the structure, and can no longer be counted as a grace. It happens, ultimately, that the mind moulds the body, and that the structure is forced to modify itself according to the play that the soul imprints upon the organs, so entirely, that grace finally is transformed—and the examples are not rare—into architectonic beauty. As at one time an antagonistic mind which is ill at ease with itself alters and destroys the most perfect beauty of structure, until at last it becomes impossible to recognize this magnificent chef-d’œuvre of nature in the state to which it is reduced under the unworthy hands of free will, so at other times the serenity and perfect harmony of the soul come to the aid of the hampered technique, unloose nature and develop with divine splendor the beauty of form, enveloped until then, and oppressed.

The plastic nature of man has in it an infinity of resources to retrieve the negligencies and repair the faults that she may have committed. To this end it is sufficient that the mind, the moral agent, sustain it, or even withhold from troubling it in the labor of rebuilding.

Since the movements become fixed (gestures pass to a state of lineament), are themselves capable of grace, it would perhaps appear to be rational to comprehend equally under this idea of beauty some apparent or imitative movements (the flamboyant lines for example, undulations). It is this which Mendelssohn upholds. But then the idea of grace would be confounded with the ideal of beauty in general, for all beauty is definitively but a property of true or apparent movement (objective or subjective), as I hope to demonstrate in an analysis of beauty. With regard to grace, the only movements which can offer any are those which respond at the same time to a sentiment.

The person (it is known what I mean by the expression) prescribes the movements of the body, either through the will, when he desires to realize in the world of sense an effect of which he has proposed the idea, and in that case the movements are said to be voluntary or intentional; or, on the other hand, they take place without its will taking any part in it—in virtue of a fatal law of the organism—but on the occasion of a sentiment, in the latter case, I say that the movements are sympathetic. The sympathetic movement, though it may be involuntary and provoked by a sentiment, ought not to be confounded with those purely instinctive movements that proceed from physical sensibility. Physical instinct is not a free agent, and that which it executes is not an act of the person; I understand then here exclusively, by sympathetic movements, those which accompany a sentiment, a disposition of the moral order.

The question that now presents itself is this: Of these two kinds of movement, having their principle in the person, which is capable of grace?