Hegel's Phenomenology of Spirit

Peter Singer In order to understand Marx, you really do need to know something about Hegel. It’s a mistake to think you could read Marx as a scientist or an economist without understanding the Hegelian framework of his thought. That’s why I chose to begin with Hegel. (Source)

Stephen Houlgate It’s a process of breaking down certain assumptions that ordinary consciousness has, and in so doing leading consciousness to philosophy. However, in Hegel’s case, the process of breaking down assumptions is immanent: it’s carried out by consciousness itself. (Source)