This is an address given by Elder Jeffery R. Holland, Quorum of the Twelve Apostles of The Church of Jesus Christ of Latter-Day Saints at Harvard Law School for their annual Mormonism 101 series on March 20, 2012. He gives an excellent explanation as to what we as Mormons believe. I am posting this for anyone who has ever wondered what it is at the root of what we believe.
You can find this news article HERE.
You can also listen to his Question & Answer portion directly following this address HERE.