Desc: Liberty Loves Reason: Directed by Ray Scott Percival. With Ray Scott Percival, Edward Crumblehulme, Lulie Tanett, David Deutsch. Evolution refutes PC-speak as justified belief. There is no royal road to truth or virtue. PC-speak, a product of evolved minds, is as fallible as a tree root in the desert sand. Unlike the tree, we can discuss ideas within free speech.