"What, then, constitutes the alienation of labor? First, in the fact that labor is external to the worker, that is, that it does not belong to his essential being; that in his work, therefore, he does not affirm himself but denies himself, does not feel well but unhappy, does not freely develop his physical and mental energy but mortifies his body and ruins his mind. The worker, therefore, feels himself only outside his work, and feels beside himself in his work. He is at home when he is not working, and when he is working he is not at home. His work therefore is not voluntary, but coerced; it is forced labor. It is therefore not the satisfaction of a need, but only a means for satisfying needs external to it. Its alien character emerges clearly in the fact that labor is shunned like the plague as soon as there is no physical or other compulsion."