The worker is related to the product of his labor as to an alien object. . . . The more the worker spends himself, the more powerful becomes the alien world of objects which he creates over and against himself, the poorer he himself - his inner world - becomes. . . . Labor is external to the worker, i.e., it does not belong to his essential being. . . . The worker therefore only feels himself outside his work, and in his work feels outside himself. He is at home when he is not working, and when he is working he is not at home. . . . Its alien character emerges clearly in the fact that as soon as no physical or other compulsion exists, labor is shunned like the plague. . . . The alien being, to whom labor and the product of labor belongs, in whose service labor is done and for whose benefit the product of labor is provided, can only be . . . some other man than the worker.