Energy has become a national security issue and as technology continues to improve there will be more debates like the one on Keystone.

I told the brethren that the Book of Mormon was the most correct of any book on earth and the keystone of our religion and a man would get nearer to God by abiding by its precepts than by any other book.

Owning a home is a keystone of wealth - both financial affluence and emotional security.

I believe fundamental honesty is the keystone of business.