American traditions and the American ethic require us to be truthful, but the most important reason is that truth is the best propaganda and lies are the worst. To be persuasive we must be believable; to be believable we must be credible; to be credible we must be truthful. It is as simple as that.
Bio: John Townes Van Zandt, best known as Townes Van Zandt, was an American singer-songwriter. Many of his songs, including "If I Needed You" and "To Live Is to Fly", are considered standards of their genre.