We shall see later in the course of our investigation that this exposition, though showing flashes of genius, remains deficient and primitive. In any case, we must stress here that Quesnay, on the threshold of scientific economics, had not the slightest doubt as to the possibility of demonstrating total social capital and its reproduction. Adam Smith, on the other hand, while giving a more profound analysis of the relations of capital, laid out what seems like a maze when compared with the clear and sweeping outlines of the Physiocrat conception. By his wrong analysis of prices, Smith upset the whole foundation of the scientific demonstration of the capitalist process as a whole. This wrong analysis of prices ruled bourgeois economics for a long time; it is the theory which maintains that, although the value of a commodity represents the amount of labour spent in its production, yet the price consists of three elements only: the wage of labour, the profit of capital, and the rent. As this obviously must also apply to the aggregate of commodities, the national product, we are faced with the startling discovery that, although the value of the aggregate of commodities manufactured by capitalist methods represents all paid wages together with the profits of capital and the rents, that is the aggregate surplus value, and consequently can replace these, there is no component of value which corresponds to the constant capital used in production. According to Smith, _v + s_ is the formula expressing the value of the capitalist product as a whole. Demonstrating his view with the example of corn, Smith says as follows: These three parts (wages, profit, and rent) seem either immediately or ultimately to make up the whole price of corn. A fourth part, it may perhaps be thought, is necessary for replacing the stock of the farmer, or for compensating the wear and tear of his labouring cattle, and other instruments of husbandry. But it must be considered that the price of any instrument of husbandry, such as a labouring horse, is itself made up of the same three parts: the rent of the land upon which he is reared, the labour of tending and rearing him, and the profits of the farmer who advances both the rent of this land and the wages of this labour. Though the price of the corn, therefore, may pay the price as well as the maintenance of the horse, the whole price still resolves itself either immediately or ultimately into the same three parts of rent, of labour and profit.'[62] Sending us in this manner 'from pillar to post', as Marx has put it, Smith again and again resolved constant capital into _v + s_. However, he had occasional doubts and from time to time relapsed into the contrary opinion. He says in the second book: