The partisans of critical communism have broken definitely with all these tendencies. They have been the successors and the continuers of classical economics.[23] What is the doctrine of the structure of present society? No one can combat this structure in practice, in politics or in revolution without first taking an exact account of its elements and its relations and making a fundamental study of the doctrine which explains it. These forms, these elements and these relations arise in certain historic conditions but they constitute a system and a necessity. How can it be hoped to destroy such a system by an act of logical negation and how eliminate it by reasoning? Eliminate pauperism? But it is a necessary condition of capitalism. Give the worker the entire product of his labor? But what would become of the profit of capital, and where and how could the money expended in the purchase of commodities be increased if among all the commodities which it meets and with which it makes exchanges there were not a particular one which returns to the buyer more than it costs him; and is not this commodity precisely the labor power of the wage worker? The economic system is not a tissue of reasonings but it is a sum and a complexus of facts which engenders a complex tissue of relations. It is a foolish thing to assume that this system of facts which the ruling class has established with great pains through the centuries by violence, by sagacity, by talent and by science will confess itself vanquished, will destroy itself to give way to the demands of the poor and to the reasonings of their advocates. How demand the suppression of poverty without demanding the overthrow of all the rest? To demand of this society that it shall change its law which constitutes its defense is to demand an absurd thing. To demand of this State that it shall cease to be the buckler and the defense of this society and of this law is plunging into absurdities.[24] The one-sided socialism which without being clearly utopian starts from the hypothesis that society admits of certain errata without revolution, that is to say without a fundamental change in the general elementary structure of society itself, is a mere piece of ingenuity. This contradiction with the rigid laws of the process of things is shown in all its evidence in Proudhon, who, reproducing without knowing it, or copying directly, some of the one-sided English socialists, wished to arrest and change history, armed with a definition and a syllogism.