Ben Carson, U.S. Secretary of the Department of Housing and Urban Development, spoke to graduates at Liberty University’s College of Osteopathic Medicine on Saturday. Carson followed former President Jimmy Carter, who gave the address at the main commencement ceremony earlier that day. Carter’s speech touched on human rights and equality. Carson told the graduates they all had “tremendous spheres of influence that God has provided for you.” “If you use them the right way and allow Him to work through you, it is amazing,” Carson said.