One can decide that the principal role of knowledge is as an indispensable element in the functioning of society, and act in accordance with that decision, only if one has already decided that society is a giant machine. – Jean-Francois Lyotard
What guides Marxism, then, is a different model of society, and a different conception of the function of the knowledge that can be produced by society and acquired from it. – Jean-Francois Lyotard