'Thus it is proved on a strictly logical development of the ideas held by bourgeois economists that the destiny of the commodity surplus on the market and that of capitalist profit is identical. This circumstance justifies the conclusion that both phenomena are interdependent, that the existence of one is a condition of the other, and indeed, so long as there is no profit, there is no commodity surplus.... It is different if the profit comes into being inside the country. Such profit is not originally related to production; it is a phenomenon which is connected with the latter not by technical and natural conditions but by an extraneous social form. Production requires for its continuation ... only material, tools, and means of subsistence for the workers, therefore as such it consumes only the corresponding part of the products: other consumers must be found for the surplus which makes up the profit, and for which there is no room in the permanent structure of industrial life, in production--consumers, namely, who are not organically connected with production, who are fortuitous to a certain extent. The necessary number of such consumers may or may not be forthcoming, and in the latter case there will be a commodity surplus on the market.'[284] Well content with the 'simple' enlightenment, by which he has turned the surplus product into an invention of capital and the capitalist into a 'fortuitous' consumer who is 'not organically connected with capitalist production', Vorontsov now turns to the crises. On the basis of Marx's 'logical' theory of the value of labour which he claims to 'employ' in his later works, he expounds them as an immediate result of the surplus value, as follows: 'If the working part of the population consumes what enters into the costs of production in form of the wages for labour, the capitalists themselves must destroy [literally so--R. L.] the surplus value, excepting that part of it which the market requires for expansion. If the capitalists are in a position to do so and act accordingly, there can be no commodity surplus; if not, over-production, industrial crises, displacement of the workers from the factories and other evils will result.' According to Vorontsov, however, it is '_the inadequate elasticity of the human organism_ which cannot enlarge its capacity to consume as rapidly as the surplus value is increasing', which is in the end responsible for these evils. He repeatedly expresses this ingenious thought as follows: 'The Achilles heel of capitalist industrial organisation thus lies in the incapacity of the entrepreneurs to consume the whole of their income.'