By Patrick "Facts need testimony to be remembered and trustworthy witnesses to be established in order to find a secure dwelling place in the domain of human affairs. From this, it follows that no factual statement can ever be beyond doubt—as secure and shielded against attack as, for instance, the statement that two and two make four. It is this fragility that makes deception so very easy up to a point, and so tempting. It never comes into a conflict with reason, because things could indeed have been as the liar maintains they were. Lies are often much more plausible,...