The First Rule of Historical Method is: don’t believe everything you read. A believable history has to be constructed from several converging lines of evidence that have been critically and skillfully examined, and not every piece of evidence is equally trustworthy. Humans are notorious liars, eager exaggerators, and happy to believe almost anything they agree with. Skepticism is a virtue—but unfortunately a rare one, even rarer than honesty.
— Richard Carrier
(via Open Parachute)