God has placed certain Materials and certain Forces at the disposal of man. In order to obtain possession of these materials and forces, Labour is necessary, or it is not. If it be not necessary, no one will voluntarily consent to purchase from another, by means of an effort, what, without any effort, he can obtain from the hands of Nature. In this case, services, exchange, value, ‹Property›, are out of the question. If, on the other hand, labour be necessary, in equity it falls upon the person who is to receive the satisfaction; whence it follows that the satisfaction is the recompense of the pains taken, the effort made, the labour undergone. Here you have the principle of Property. This being so, a man takes pains, or submits to labour, for his own benefit, and becomes possessed of the whole utility realized by this labour co-operating with nature. He takes pains, or submits to labour, for another, and in that case he bargains to receive in return an equivalent service, which is likewise the vehicle of utility, and the result exhibits two Efforts, two Utilities which have changed hands, and two Satisfactions. But we must not lose sight of this, that the transaction is effected by the comparison, by the ‹appreciation›, not of the two utilities (they cannot be brought to this test), but of the two services exchanged. It is then exact to say that, in a personal point of view, man, by means of labour, becomes proprietor of natural utility (that is the object of his labour), whatever be the relation (which may vary ‹ad infinitum›) of labour to utility. But in a ‹social› point of view, or in reference to each other, men are never proprietors except of value, the foundation of which is not the liberality of nature, but human service, pains taken, danger encountered, skill displayed, in securing that liberality. In a word, in what concerns natural and gratuitous utility, the last acquirer, the person who is the recipient of the satisfaction, is placed, by exchange, in the shoes of the first labourer. The latter has found himself in presence of a gratuitous utility which he has taken the pains to appropriate; the former returns him an equivalent service, and thus substitutes himself in the other’s right and place; utility is acquired by him by the same title, that is to say, by a gratuitous title, on condition of pains taken. There is here, neither in fact nor in appearance, any improper interception of the gifts of God. I venture, then, to lay down this proposition as unassailable: ‹In relation to one another, men are proprietors only of values, and values represent only services compared, and voluntarily received and rendered.› [p227]