The Theory of Land Ownership
"It must be added that the theory of land ownership in a free society set forth here, i.e., first ownership by the first user, has nothing in common with another superficially similar theory of land ownership—advanced by J.K. Ingalls and his disciples in the late nineteenth century. Ingalls advocated continuing ownership only for actual occupiers and personal users of the land. This is in contrast to original ownership by the first user."
—Murray N. Rothbard. Man, Economy, and State with Power and Market