Philosophers the world over suffer from anosognosia. Their primary disability is that they work in a field, a discipline, that never progresses, yet most of them get state money in the form of salaries. This creates cognitive dissonance and is apparently impossible to live with. So, they develop anosognosia and simply deny that philosophy never progresses. They assert that philosophy does progress, because, after all, we now know that . . . wait for it . . . theory X is true.
-Eric Dietrich, There Is No Progress in Philosophy