"Central to Green's thought, and most important to later new Liberal theorists, was Green's redefinition of freedom. The expansion of the idea of freedom to include economic as well as political rights concerned the later Mill. But it was in the works of Green that a new theoretical definition of freedom was first developed. Green was aware of the economic and social conditions which were leading men to question the traditional Liberal concept of freedom, but his own definition must be understood not only in terms of his reaction to the suffering of the poor and the working class, but more important, in terms of his moral concerns. Green's original interests were basically moral and religious, and his idealist metaphysics was meant to replace Christianity with a kind of undogmatic religion where men found God through service in this world."