The Book of Mormon, the Bible, and other scriptures, along with the guidance of modern prophets, provide true standards of conduct. In addition, the gift of the Holy Ghost is available as a sure guide, as the voice of conscience, and as a moral compass. This guiding compass is personal to each of us. It is unerring. It is unfailing. However, we must listen to it in order to steer clear of the shoals which will cause our lives to sink into unhappiness and self-doubt. – James E. Faust, “The Gift of the Holy Ghost—A Sure Compass,” Ensign (CR) May 1989