First published in 1984 in France by L’Insecurité Sociale, this essay on the nature of communism—punctuated by four illustrative quotations from Moses Hess, Gerrard Winstanley and William Morris—claims that capitalism “has only one insuperable contradiction: the human species”, and defines communism as the “tendency towards human community” that “is a constant feature of human history and has repeatedly assumed concrete forms”.