http://opinionator.blogs.nytimes.com/2010/06/20/the-anosognosics-dilemma-1/

Anosognscia: not knowing (you don’t know). This is the state we are in regarding language. Read the story of the Bank Robber. It’s our story. Our species is actually hypnotically fascinated with language, and that’s why we do not know, that we have not yet understood — that what we ‘know’ is -not knowledge!-.