“Gallantly, ceaselessly, quietly, man must fight for inner liberty to remain independent of the enslavement of the material world. Inner liberty depends upon being exempt from domination of things as well as from domination of people. There are many who have acquired a high degree of political and social liberty, but only very few are not enslaved to things. This is our constant problem— how to live with people and remain free, how to live with things and remain independent.”