"The worker does not affirm himself in his work, but denies himself, feels miserable and unhappy, develops no free physical and mental energy, but mortifies his flesh and ruins his mind. His work is not voluntary but coerced, forced labour. It is not the satisfaction of a need but only a means to satisfy other needs. Its alien character is obvious from the fact that, as no physical or other pressures exist, labour is avoided like the plague." Karl Marx