A remarkable passage from "The Magic Mountain" by Thomas Mann published in 1927 and which foreshadows, I think, much of Affect Theory.
.…He demolished illusions, he was ruthlessly enlightened, he relentlessly destroyed all faith in the dignity of silver hairs and the innocence of the sucking babe. And he wore, with the frock-coat, his neglige collar sandals, and grey woolen socks, and, thus attired , made an impression profoundly otherworldly, though at the same time not a little startling to young Hans Castorp. He supported his statements with a wealth of illustrations and anecdote from the books and loose notes on the table before him; several times he even quoted poetry. And he discussed certain startling manifestations of the power of love, certain extraordinary, painful, uncanny variations, which the majestic phenomenon at times displayed. It was, he said, the most unstable, the most unreliable of man’s instincts, the most prone of its very essence to error and fatal perversion. In the which there was nothing that should cause surprise. For his mighty force did not consist of a single impulse, it was of its nature complex; it was built up out of components which, however legitimate they might be in composition, were, taken each by itself, sheer perversity. But- continued Dr. krokowski-since we refuse, and rightly, to deduce the perversity of the whole from the perversity of its parts, we are drive to claim, for the component perversities, some part at least, thought perhaps not all, of the justification which attaches to their united product. We where driven by sheer force of logic to this conclusion;  Dr Krokowski implored his hearers, having arrived at it, to hold it fast. Now there where psychical correctives, forces working in the other directions, instincts tending to conformability and regularity – he would almost have liked to characterize them as bourgeois; and thes4e influences had the effect of merging the perverse components into a valid and irreproachable whole a frequent and gratifying result, which, Dr. Krokowske almost contemptuously added, was, as such of no further concern to the thinker and the physicians. Bust on the other hand, there where cases where this result was not obtained, could not and should not be obtained; and who, Dr. Krokowski asked, would dare to say that these cases did not, psychically considered, from a higher, more exclusive type? 

 

 For in these cases the two opposing groups of instincts- the compulsive force of love and the sum of the impulses urging in the other direction, among which he would particularly mention shame and disgust – both exhibited  an extraordinary and abnormal height and intensity when measured by the ordinary bourgeois standards; and the conflict between them which took place in the abysses of the soul prevented the erring instinct from attaining to the safe, sheltered, and civilized state which alone could resolve its difficulties in the prescribed harmonies of the love-life as experienced by the average human being.  This conflict between the Powers of love and chastity – for that was what it really amounted to – what was its issue ? It ended, apparently, in the triumph of chastity. Love was suppressed, held in darkness and chains, by fear, conventionality, aversion, or a tremulous yearning to be pure. Her confused and tumultuous claims where never allowed to rise to consciousness or to come to proof in anything like their entire strength or mutiformity. But this triumph of chastity was only a apparent , a pyrrhic victory, for the claim of love could not b crippled or enforced by any such means, the love thus suppressed was not dead; dead it lived, I labored after fulfillment in the darkest and secretest depths of the being. It would break through the ban of chastity. It would emerge- if in a form so altered as to be unrecognizable. But what the was this form, this mask, in which suppressed, uncharted  love would reappear? Dr.Krokowski asked the question, and looked along  the  listening rows as though in all seriousness expecting an answer. But he had to say it him self, who had said so much else already. No one knew save him, but it was plain that he did. Indeed, with his ardent eyes, his black beard setting off the waxen pallor of his face, his monkish sandals and grey woolen socks, he seemed to symbolize in his own person  the conflict between passion and chastity which was his theme. At least so thought Hans Castrop, as with the others he waited in the greatest suspense to hear in what form love driven below the surface would reappear. The ladies barely breathed. Lawyer Pravant rattled his ear anew, that the critical moment might find it open and receptive. And Dr Krokowski answered his own question, and said: “ In the form of illnesses. Symptoms of disease are nothing but a disguised manifestation of the power of love; and all disease is only love transformed.”