to demonstrate that pure reason is to be realised in humanity, the best proof given by the analysis is that this realisation is demanded.  But, as in the realisation of beauty or of aesthetic unity, there is a real union, mutual substitution of matter and of form, of passive and of active, by this alone is proved the compatibility of the two natures, the possible realisation of the infinite in the finite, and consequently also the possibility of the most sublime humanity.

Henceforth we need no longer be embarrassed to find a transition from dependent feeling to moral liberty, because beauty reveals to us the fact that they can perfectly co-exist, and that to show himself a spirit, man need not escape from matter.  But if on one side he is free, even in his relation with a visible world, as the fact of beauty teaches, and if on the other side freedom is something absolute and super-sensuous, as its idea necessarily implies, the question is no longer how man succeeds in raising himself from the finite to the absolute, and opposing himself in his thought and will to sensuality, as this has already been produced in the fact of beauty.  In a word, we have no longer to ask how he passes from virtue to truth, which is already included in the former, but how he opens a way for himself from vulgar reality to aesthetic reality, and from the ordinary feelings of life to the perception of the beautiful.

LETTER XXVI.

I have shown in the previous letters that it is only the aesthetic disposition of the soul that gives birth to liberty, it cannot therefore be derived from liberty nor have a moral origin.  It must be a gift of nature; the favour of chance alone can break the bonds of the physical state and bring the savage to duty.  The germ of the beautiful will find an equal difficulty in developing itself in countries where a severe nature forbids man to enjoy himself, and in those where a prodigal nature dispenses him from all effort; where the blunted senses experience no want, and where violent desire can never be satisfied.  The delightful flower of the beautiful will never unfold itself in the case of the Troglodyte hid in his cavern always alone, and never finding humanity outside himself; nor among nomads, who, travelling in great troops, only consist of a multitude, and have no individual humanity.  It will only flourish in places where man converses peacefully with himself in his cottage, and with the whole race when he issues from it.  In those climates where a limpid ether opens the senses to the lightest impression, whilst a life-giving warmth developes a luxuriant nature, where even in the inanimate creation the sway of inert matter is overthrown, and the victorious form ennobles even the most abject natures; in this joyful state and fortunate zone, where activity alone leads to enjoyment, and enjoyment to activity, from life itself issues a holy harmony, and the laws of order develope life, a different result takes place.  When imagination incessantly escapes from reality, and does not abandon the simplicity of nature in its wanderings:  then and there only the mind and the senses, the receptive force and the plastic force, are developed in that happy equilibrium which is the soul of the beautiful and the condition of humanity.