From Main Currents of Marxism by Leszek Kolakowski (1927-2009):
Marx took over the romantic ideal of social unity, and Communism realized it in the only way feasible in an industrial society, namely, by a despotic system of government. The origin of this dream is to be found in the idealized image of the Greek city-state popularized by Winckelmann and others in the eighteenth century and subsequently taken up by German philosophers. Marx seems to have imagined that once capitalists were done away with the whole world could become a kind of Athenian agora: one had only to forbid private ownership of machines or land and, as if by magic, human beings would cease to be selfish and their interests would coincide in perfect harmony. Marxism affords no explanation of how this prophecy is founded, or what reason there is to think that human interests will cease to conflict as soon as the means of production are nationalized.
Marx, moreover, combined his romantic dreams with the socialist expectation that all needs would be fully satisfied in the earthly paradise. The early socialists seem to have understood the slogan ‘To each according to his needs’ in a limited sense: they meant that people should not have to suffer cold and hunger or spend their lives staving off destitution. Marx, however, and many Marxists after him, imagined that under socialism all scarcity would come to an end. It was possible to entertain this hope in the ultra-sanguine form that all wants would be satisfied as though every human being had a magic ring or obedient jinn at his disposal. But, since this could hardly be taken seriously, Marxists who considered the question decided with a fair degree of support from Marx’s works, that Communism would ensure the satisfaction of ‘true’ or ‘genuine’ needs consonant with human nature, but not whims or desires of all kinds. This, however, gave rise to a problem which no one answered clearly: who is to decide what needs are ‘genuine,’ and by what criteria? If every man is to judge this for himself, then all needs are equally genuine provided they are actually, subjectively felt, and there is no room for any distinction. If, on the other hand, it is the state which decides, then the greatest emancipation in history consists in a system of universal rationing.
At the present time it is obvious to all except a handful of new Left adolescents that socialism cannot literally ‘satisfy all needs’ but can only aim at a just distribution of insufficient resources—which leaves us with the problem of defining ‘just’ and of deciding by what social mechanisms the aim is to be effected in each particular case. The idea of perfect equality, i.e. an equal share of all goods for everybody, is not only unfeasible economically but is contradictory in itself: for perfect equality can only be imagined under a system of extreme despotism, but despotism itself presupposes inequality at least in such basic advantages as participation in power and access to information. (For the same reason, contemporary gauchistes are in an untenable position when they demand more equality and less government: in real life more equality means more government, and absolute equality means absolute government.)