The crisis was passed and this was precisely true in the countries which constituted the historic field from which critical communism proceeded. All that the critical communists could do was to understand the reaction in its hidden economic causes because, for the moment, to understand the reaction was to continue the work of the revolution. The same thing happened under other conditions and other forms 20 years later when Marx, in the name of the International made in the "Civil War in France" an apology for the Commune which was at the same time its objective criticism. The heroic resignation with which Marx after 1850 abandoned political life was shown again when he retired from the International after the congress at the Hague in 1872. These two facts have their value for biography because they give glimpses of his personal character. With him, in fact, ideas, temperament, policy and thought were one and the same. But, on the other hand, these facts have a much greater bearing for us. Critical communism does not manufacture revolutions, it does not prepare insurrections, it does not furnish arms for revolts. It mingles itself with the proletarian movement, but it sees and supports that movement in the full intelligence of the connection which it has, which it can have, and which it must have, with all the relations of social life as a whole. In a word it is not a seminary in which superior officers of the proletarian revolution are trained, but it is neither more nor less than the consciousness of this revolution and especially the consciousness of its difficulties. The proletarian movement has grown in a colossal fashion during these last thirty years. In the midst of numberless difficulties, through gains and losses, it has little by little taken on a political form. Its methods have been elaborated and gradually applied. All this is not the work of the magic action of the doctrine scattered by the persuasive virtue of written and spoken propaganda. From their first beginnings the communists had this feeling that they were the extreme left of every proletarian movement, but in proportion as the latter developed and specialized it became their necessity and duty to assist, (through the elaboration of programmes, and through their participation in the political action of the parties) in the various contingencies of the economic development and of the political situation growing out of it.