Man's capacity for justice makes democracy possible, but man's inclination to injustice makes democracy necessary.
Source: Quoted by Anthony Wedgwood Benn in The Times, 18 Jul 1977
-- Reinhold Niebuhr, (Jun 21 1892-1971), US theologian, author; He pioneered the philosophy of Christian realism; wrote Nature and Destiny of Man, 1943; received Medal of Freedom, 1964.