223. Once admit as the idea of property that nature should be progressively adapted to the service of man by a process in which each, while working freely or for himself, i.e. as determined by a conception of his own good, at the same time contributes to the social good, and it will follow that property must be unequal. If we leave a man free to realise the conception of a possible well-being, it is impossible to limit the effect upon him of his desire to provide for his future well-being, as including that of the persons in whom he is interested, or the success with which at the prompting of that desire he turns resources of nature to account. Considered as representing the conquest of nature by the effort of free and variously gifted individuals, property must be unequal; and no less must it be so if considered as a means by which individuals fulfil social functions. As we may learn from Aristotle, those functions are various and the means required for their fulfilment are various. The artist and man of letters require different equipment and apparatus from the tiller of land and the smith. Either then the various apparatus needed for various functions must be provided for individuals by society, which would imply a complete regulation of life incompatible with that highest object of human attainment, a free morality; or we must trust for its provision to individual effort, which will imply inequality between the property of different persons. 224. The admission of freedom of trade follows from the same principle. It is a condition of the more complete adaptation of nature to the service of man by the free effort of individuals. 'To buy in the cheapest and sell in the dearest market' is a phrase which may no doubt be used to cover objectionable transactions, in which advantage is taken of the position of sellers who from circumstances are not properly free to make a bargain. It is so employed when the cheapness of buying arises from the presence of labourers who have no alternative but to work for 'starvation wages.' But in itself it merely describes transactions in which commodities are bought where they are of least use and sold where they are of most use. The trader who profits by the transaction is profiting by what is at the same time a contribution to social well-being.