Some of the American individualist anarchists later in this era such as Benjamin Tucker abandoned natural rights positions and converted to Max Stirner's egoist anarchism. Rejecting the idea of moral rights, Tucker said that there were only two rights, "the right of might" and "the right of contract". He also said after converting to egoist individualism: "In times past it was my habit to talk glibly of the right of man to land. It was a bad habit, and I long ago sloughed it off. Man's only right to land is his might over it". In adopting Stirnerite egoism in 1886, Tucker rejected natural rights which had long been considered the foundation of libertarianism. This rejection galvanized the movement into fierce debates, with the natural rights proponents accusing the egoists of destroying libertarianism itself. So bitter was the conflict that a number of natural rights proponents withdrew from the pages of "Liberty" in protest even though they had hitherto been among its frequent contributors. Thereafter, "Liberty" championed egoism although its general content did not change significantly.