Such presentation has laid him open to accusations of misreading other philosophers, particularly Jacques Lacan and Georg Wilhelm Friedrich Hegel. Žižek carries over many concepts from Lacan's teachings into the sphere of political and social theory, but has a tendency to do so in an extreme deviation from its psychoanalytic context. Similarly, according to some critics, Žižek's conflation of Lacan's unconscious with Hegel's unconscious is mistaken. Noah Horwitz, in an effort to dissociate Lacan from Hegel, interprets the Lacanian unconscious and the Hegelian unconscious as two totally different mechanisms. Horwitz points out, in Lacan and Hegel's differing approaches to the topic of speech, that Lacan's unconscious reveals itself to us in parapraxis, or "slips-of-the-tongue". We are therefore, according to Lacan, alienated from language through the revelation of our desire. (Even if that desire originated with the Other, as he claims, it remains peculiar to us). In Hegel's unconscious, however, we are alienated from language whenever we attempt to articulate a particular and end up articulating a universal. For example, if I say 'the dog is with me', although I am trying to say something about this particular dog at this particular time, I actually produce the universal category 'dog', and therefore express a generality, not the particularity I desire. Hegel's argument implies that, at the level of sense-certainty, we can never express the true nature of reality. Lacan's argument implies, to the contrary, that speech reveals the true structure of a particular unconscious mind.