"You will remember how Plato deals with poets in his ideal state: he banishes them from it in the public interest. He had a high conception of the power of poetry, but he believed it harmful, superfluous - in a perfect community, of course. The question of the poet's right to exist has not often, since then, been posed with the same emphasis; but today it poses itself. Probably it is only seldom posed in this form, but it is more or less familiar to you all as the question of the autonomy of the poet, of his freedom to write whatever he pleases... A more advanced type of writer does recognize this choice. His decision, made on the basis of class struggle, is to side with the proletariat... Such writing is commonly called tendentious. Here you have the catchword around which has long circled a debate familiar to you. Its familiarity tells you how unfruitful it has been, for it has not advanced beyond the monotonous reiteration of arguments for and against: on the one hand, the correct political line is demanded of the poet; on the other, one is justified in expecting his work to have quality. Such a formulation is of course unsatisfactory as long as the connection between the two factors, political line and quality, has not been perceived. Of course, the connection can be asserted dogmatically. You can declare: a work that shows the correct political tendency need show no other quality. You can also declare: a work that exhibits the correct tendency must of necessity have every other quality. This second formulation is not uninteresting, and, moreover, it is correct. I adopt it as my own. But in doing so I abstain from asserting it dogmatically. It must be proved... the tendency of a literary work can be politically correct only if it is also literarily correct. That is to say, the politically correct tendency includes a literary tendency. And I would add straightaway: this literary tendency, which is implicitly or explicitly contained in every correct political tendency of a work, alone constitutes the quality of that work."
("The Author as Producer")
A 3D illustration of a metasurface skin cloak made from an ultrathin layer of nanoantennas (gold blocks) covering an arbitrarily shaped object. Light reflects off the cloak (red arrows) as if it were reflecting off a flat mirror.