From Ezra Taft Benson, "The Book of Mormon: The Keystone of Our Religion," Ensign (November 1986): 7.
It is not just that the Book of Mormon teaches us truth, though it indeed does that. it is not just that the Book of Mormon bears testimony of Christ, though it indeed does that too. But there is something more. There is a power in the book which will begin to flow into your lives the moment you begin a serious study of the book. You will find greater power to resist temptation. You will find power to avoid deception. You will find power to stay on the strait and narrow path. The scriptures are called "the words of life" (see D&C 84:85), and nowhere is that more true than it is of the Book of Mormon. When you begin to hunger and thirst after those words, you will find life in greater and greater abundance.