Abstract
Central parts of the natural law theories of Grotius and Pufendorf assume that persons by nature have individual realms of their own, violations of which constitute a wrong. This is the basis for their accounts of promises, ownership and reactions against wrongs. These accounts are significantly independent of any assumption that a superior being imposes obligations: rather, the individuals themselves create obligations by their own acts of will. The translator's introducton draws attention to the author's relation to Hägerström, and remarks briefly on related points in Ames, Köhler and Georges Davy