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: "In Nature too, much may exist that we do not like. But we cannot change the essential character of natural events. If, for example, someone thinks — and there are some who have maintained as much — that the way in which man ingests his food, digests it, and incorporates it into his body is disgusting, one cannot argue the point with him. One must say to him: There is only this way or starvation." - Liberalism