Full Idea
Separate individuals form a class only insofar as they have to carry on a battle against another class; otherwise they are on hostile terms with each other as competitors.
Gist of Idea
Individuals are mutually hostile unless they group together in competition with other groups
Source
K Marx / F Engels (The German Ideology [1846], §1.D)
Book Reference
Marx,K./Engels,F.: 'The German Ideology', ed/tr. Arthur,C.J. [Lawrence and Wishart 1985], p.82
A Reaction
Beneath the Marxist view that consciousness is a social creation lies a Hobbesian pessimism about basic human nature. This idea bodes ill for ultimate communism, because class struggle will have been abolished. What, then, can unite people?