Second, the therapeutic sensibility thrives in the absence of any cultural authority capable of adjudicating the legitimacy or truth of ideas. Whoever makes truth claims — religion, enlightened reason, the state, science, the literary canon, ministers, politicians, physicians, or professors — will be challenged. In the supermarket of truth, Scientology and intelligent design compete for shelf space with neuroscience and Evangelical Christianity. The absence of any final cultural authority is crucial to the therapeutic enterprise, but at the same time undermines it. Advocates have the right to claim truth for their ideas, but must at the same time rebut the claims of others. Physicians have to contend with alternative medicine and patients’ rights movements, real scientists with creation science, and humanities professors with the likes of David Horowitz. Nobody’s toes are safe.