That, too, but Trotsky meant much more than that:
***** More than that. Man at last will begin to harmonize himself in earnest. He will make it his business to achieve beauty by giving the movement of his own limbs the utmost precision, purposefulness and economy in his work, his walk and his play. He will try to master first the semiconscious and then the subconscious processes in his own organism, such as breathing, the circulation of the blood, digestion, reproduction, and, within necessary limits, he will try to subordinate them to the control of reason and will. Even purely physiologic life will become subject to collective experiments. The human species, the coagulated Homo sapiens, will once more enter into a state of radical transformation, and, in his own hands, will become an object of the most complicated methods of artificial selection and psycho-physical training. This is entirely in accord with evolution. Man first drove the dark elements out of industry and ideology, by displacing barbarian routine by scientific technique, and religion by science. Afterwards he drove the unconscious out of politics, by overthrowing monarchy and class with democracy and rationalist parliamentarianism and then with the clear and open Soviet dictatorship. The blind elements have settled most heavily in economic relations, but man is driving them out from there also, by means of the Socialist organization of economic life. This makes it possible to reconstruct fundamentally the traditional family life. Finally, the nature of man himself is hidden in the deepest and darkest corner of the unconscious, of the elemental, of the sub-soil. Is it not self-evident that the greatest efforts of investigative thought and of creative initiative will be in that direction? The human race will not have ceased to crawl on all fours before God, kings and capital, in order later to submit humbly before the dark laws of heredity and a blind sexual selection! Emancipated man will want to attain a greater equilibrium in the work of his organs and a more proportional developing and wearing out of his tissues, in order to reduce the fear of death to a rational reaction of the organism towards danger. There can be no doubt that man's extreme anatomical and physiological disharmony, that is, the extreme disproportion in the growth and wearing out of organs and tissues, give the life instinct the form of a pinched, morbid and hysterical fear of death, which darkens reason and which feeds the stupid and humiliating fantasies about life after death.
Man will make it his purpose to master his own feelings, to raise his instincts to the heights of consciousness, to make them transparent, to extend the wires of his will into hidden recesses, and thereby to raise himself to a new plane, to create a higher social biologic type, or, if you please, a superman.
It is difficult to predict the extent of self-government which the man of the future may reach or the heights to which he may carry his technique. Social construction and psycho-physical self-education will become two aspects of one and the same process. All the arts -- literature, drama, painting, music and architecture will lend this process beautiful form. More correctly, the shell in which the cultural construction and self-education of Communist man will be enclosed, will develop all the vital elements of contemporary art to the highest point. Man will become immeasurably stronger, wiser and subtler; his body 'will become more harmonized, his movements more rhythmic, his voice more musical. The forms of life will become dynamically dramatic. The average human type will rise to the heights of an Aristotle, a Goethe, or a Marx. And above this ridge new peaks will rise. (Leon Trotsky, _Literature and Revolution_, at <http://csf.colorado.edu/mirrors/marxists.org/archive/trotsky/works/1924/lit_revo/ch08.htm>) *****
A document from the period when socialists were unabashedly Promethean.....
Yoshie