From Schiller's letters on aesthetics

"No doubt the artist is the child of his time, but unhappy for him if he is its disciple or even its favorite!

"[...] Cherish triumphant truth in the modest sanctuary of your heart; give it an incarnate form through beauty, that it may not only be in the understanding that does homage to it, but that feeling may lovingly grasp its appearance. And that you may not by any chance take from external reality the model which you yourself ought to furnish, do not venture into its dangerous society before you are assured in your own heart that you have a good escort furnished by ideal nature. Live with your age, but be not its creation; labor for your contemporaries, but do for them what they need, and not what they praise. Without having shared their faults, share their punishment with a noble resignation, and bend under the yoke which they find it as painful to dispense with as to bear. By the constancy with which you will despise their good fortune, you will prove to them that it is not through cowardice that you submit to their sufferings. See them in thought such as they ought to be when you must act upon them; but see them as they are when you are tempted to act for them. Seek to owe their suffrage to their dignity; but to make them happy keep an account of their unworthiness: thus, on the one hand, the nobleness of your heart will kindle theirs, and, on the other, your end will not be reduced to nothingness by their unworthiness. The gravity of your principles will keep them off from you, but in play they will still endure them. Their taste is purer than their heart, and it is by their taste you must lay hold of this suspicious fugitive. In vain will you combat their maxims, in vain will you condemn their actions; but you can try your moulding hand on their leisure. Drive away caprice, frivolity, and coarseness from their pleasures, and you will banish them imperceptibly from their acts, and at length from their feelings. Everywhere that you meet them, surround them with great, noble, and ingenious forms; multiply around them the symbols of perfection, till appearance triumphs over reality, and art over nature."

From Schiller's letters on aesthetics

"If the nobility of art has survived the nobility of nature, it also goes before it like an inspiring genius, forming and awakening minds. Before truth causes her triumphant light to penetrate into the depths of the heart, poetry intercepts her rays, and the summits of humanity shine in a bright light, while a dark and humid night still hangs over the valleys.

"But how will the artist avoid the corruption of his time which encloses him on all hands? Let him raise his eyes to his own dignity, and to law; let him not lower them to necessity and fortune. Equally exempt from a vain activity which would imprint its trace on the fugitive moment, and from the dreams of an impatient enthusiasm which applies the measure of the absolute to the paltry productions of time, let the artist abandon the real to the understanding, for that is its proper field. But let the artist endeavor to give birth to the ideal by the union of the possible and of the necessary. Let him stamp illusion and truth with the effigy of this ideal; let him apply it to the play of his imagination and his most serious actions, in short, to all sensuous and spiritual forms; then let him quietly launch his work into infinite time.

"But the minds set on fire by this ideal have not all received an equal share of calm from the creative genius—that great and patient temper which is required to impress the ideal on the dumb marble, or to spread it over a page of cold, sober letters, and then intrust it to the faithful hands of time. This divine instinct, and creative force, much too ardent to follow this peaceful walk, often throws itself immediately on the present, on active life, and strives to transform the shapeless matter of the moral world."