Skepticism sells well at retail but not at wholesale. Retail skeptics can doubt everything from a weather report to the resurrection, but evidence that leads to truth may dissolve their doubt. Whole sale skepticism, on the other hand, grandly proclaims that there is no truth, and it’s just the thing to get a philosopher fired up. Aristotle famously sought to refute the skeptic who declares that “there is no truth” by asking whether that statement is true. If it is true, then there is truth. If it is false, then there is truth. Hah!