All the many things
Is Marxism just one big Hegelian loop? Foucault reports:

A large part of my indebtedness is to Jean Hyppolite.  I know that, for many, his work is associated with that of Hegel, and that our age, whether through logic or epistemology, whether through Marx or through Nietzche, is attempting to flee Hegel…But to truly escape Hegel invokes an exact appreciation of the price we have to pay to detach ourselves from him.  It assumes that we are aware of the extent to which Hegel, insidiously perhaps, is close to us. It implies a knowledge about that which permits us to think against Hegel, about that which remains Hegelian.  We have to determine the extent to which our anti-Hegelianism is possibly one of his tricks directed against us, at the end of which he stands, motionless, waiting for us.