More Mill, emphasis mine this time:
For, being cognizant of all that can, at least obviously, be said against him, and having taken up his position against all gainsayers - knowing that he has sought for objections and difficulties instead of avoiding them, and has shut out no light which can be thrown upon the subject from any quarter - he has a right to think his judgement better than that of any other person, or any multitude, who have not gone through a similar process.
UPDATE: Folks should also see Wil Wilkinson's neologism"pulling a Hopkins":
pull a Hopkins intr. v. 1. to become faint or nauseated upon hearing a statement contrary to one's ideology or dogma. 2. to leave the room, usually dramatically, because of such faintness or nausea. 3. to feign such faintness or nausea as part of a ploy to establish or reinforce a social convention about the limits of acceptable discourse.