Since labour is motion, time is its natural measure. - Karl Marx

First, the fact that labor is external to the worker, i.e., it does not belong to his intrinsic nature; that in his work, therefore, he does not affirm himself but denies himself, does not feel content but unhappy, does not develop freely his physical and mental energy but mortifies his body and ruins his mind. The worker therefore only feels himself outside his work, and in his work feels outside himself. He feels at home when he is not working, and when he is working he does not feel at home. His labor is therefore not voluntary, but coerced; it is forced labor. It is therefore not the satisfaction of a need; it is merely a means to satisfy needs external to it. Its alien character emerges clearly in the fact that as soon as no physical or other compulsion exists, labor is shunned like the plague. External labor, labor in which man alienates himself, is a labor of self-sacrifice, of mortification. Lastly, the external character of labor for the worker appears in the fact that it is not his own, but someone else’s, that it does not belong to him, that in it he belongs, not to himself, but to another. Just as in religion the spontaneous activity of the human imagination, of the human brain and the human heart, operates on the individual independently of him – that is, operates as an alien, divine or diabolical activity – so is the worker’s activity not his spontaneous activity. It belongs to another; it is the loss of his self.

When communist workmen associate with one another, theory, propaganda, etc., is their first end. But at the same time, as a result of this association, they acquire a new need - the need for society - and what appears as a means becomes an end. You can observe this practical processing its most splendid results whenever you see French socialist workers together. Such things as smoking, drinking, eating, etc., are no longer means of contact or means that bring together. Company, association, and conversation, which again has society as its end, are enough for them; the brotherhood of man is on mere phase with them, but a fact of life, and the nobility of man shines upon us from their work-hardened bodies.

On the other hand one must not entertain any fantastic illusions on the productive power of the credit system, so far as it supplies or sets in motion money-capital.