Modern liberalism, even as its philosophers hold that no act is objectively sinful, treats hypocrisy as a serious sin. Why? If nothing is sinful, why is hypocrisy sinful? Hypocrisy is sinful -- that is, damaging to the soul -- if the moral principles the hypocrite voices then violates are true. But liberals tell us those principles aren't true, that humans can depart from them without damage to their character. So what's the moral problem with violating a moral code liberals consider false in the first place? Hypocrisy is a moral problem, but liberals can't reach that conclusion on the basis...