The Quiddity of Bullshit

Where do you start if you are an academic philosopher in search of the quiddity of bullshit? “So far as I am aware,” Frankfurt dryly observes, “very little work has been done on this subject.” He did find an earlier philosopher's attempt to analyze a similar concept under a more genteel name: humbug. Humbug, that philosopher decided, was a pretentious bit of misrepresentation that fell short of lying. (A politician talking about the importance of his religious faith comes to mind.) Frankfurt was not entirely happy with this definition. The difference between lies and bullshit, it seemed to him, was more than a matter of degree...more here