Amity Shlaes discusses her book Coolidge.

Hillary Rodham Clinton speaks on U.S. leadership.

In her farewell address, Secretary of State Hillary Rodham Clinton discusses American leadership.

ISOBEL COLEMAN:  Good afternoon, everybody.  Good afternoon.  I'm Isobel Coleman.  I'm a senior fellow here at the Council on Foreign Relations and director of the council's Civil Society, Markets, …

DAVID BRADLEY: Good afternoon. Good afternoon. Good afternoon, everyone. On behalf of the Council on Foreign Relations, I want to welcome President Benigno Aquino III. He's the 15th president of th…