The position is different with regard to circulating capital. 'But though the whole expenses of maintaining the fixed capital is thus necessarily excluded from the neat revenue of the society, it is not the same case with that of maintaining the circulating capital. Of the four parts of which this latter capital is composed, money, provisions, materials and finished work, the three last, it has already been observed, are regularly withdrawn from it and placed either in the fixed capital of the society, or in their stock reserved for immediate consumption. Whatever portion of those consumable goods is not employed in maintaining the former, goes all to the latter, and makes a part of the neat revenue of the society, besides what is necessary for maintaining the fixed capital.'[74] We see that Smith here simply includes in this category of circulating capital everything but the fixed capital already employed, that is to say, foodstuffs and raw materials and in part commodities which, according to their natural form, belong to the replacement of fixed capital. Thus he has made the concept of circulating capital vague and ambiguous. But a further and most important distinction crops up and cuts right through this conception: 'The circulating capital of a society is in this respect different from that of an individual. That of an individual is totally excluded from making any part of his neat revenue, which must consist altogether in his profits. But though the circulating capital of every individual makes a part of that of the society to which he belongs, it is not upon that account totally excluded from making a part likewise of their neat revenues.'[75] In the following illustration Smith expounds what he means: 'Though the whole goods in a merchant's shop must by no means be placed in his own stock reserved for immediate consumption, they may in that of other people, who, from a revenue derived from other funds, may regularly replace their value to him, together with its profits, without occasioning any diminution either of his capital or theirs.'[76]