Thus the right of the partners to a marriage over each other's person is the jus in re; that of two who are betrothed is only the jus ad rem.

In the first, possession and property are united; the second includes only naked property.

With me who, as a laborer, have a right to the possession of the products of Nature and my own industry,--and who, as a proletaire, enjoy none of them,--it is by virtue of the jus ad rem that I demand admittance to the jus in re.
This distinction between the jus in re and the jus ad rem is the basis of the famous distinction between possessoire and petitoire,--actual categories of jurisprudence, the whole of which is included within their vast boundaries.

Petitoire refers to every thing relating to property; possessoire to that relating to possession.

In writing this memoir against property, I bring against universal society an action petitoire: I prove that those who do not possess to-day are proprietors by the same title as those who do possess; but, instead of inferring therefrom that property should be shared by all, I demand, in the name of general security, its entire abolition.