James A. Sadowsky, S.J., S.T.L. (1923–2012) was professor emeritus of philosophy at Fordham University, where he began teaching in 1960. A convert to Roman Catholicism from Anglicanism (1939) and ordained as a priest of the Society of Jesus (1957), he was a friend of Murray Rothbard's since the early 1960s and a Rothbardian in political philosophy and economics. Rothbard endorsed Sadowsky’s definition of rights (as formulated in the latter's 1966 article, "Private Property and Collective Ownership," which Rothbard cites in his The Ethics of Liberty (1982).
Ludwig von Mises: "If one wants to study the reasons for Europes backwardness, it would be necessary to examine the manifold laws and regulations that prevented in Europe the establishment of an equivalent of the American drug store and crippled the evolution of chain stores, department stores, super markets and kindred outfits." - Planning for Freedom