Feb.11 Charles Koch turned his father's small business into one of the most profitable private companies in the U.S., now he's heavily focused on philanthropy that empowers people. Koch and Brian Hooks, the head of Koch's philanthropic endeavors, discuss their new book "Believe in People" on the latest episode of "The David Rubenstein Show: PeertoPeer Conversations." The interview was recorded on Dec. 8, 2020.