Martin Luther King Junior, born Michael King (Atlanta, 1929) was an American Baptist minister and leader in the African-American Civil Rights Movement.
Luther King focused his career as an activist in nonviolent defense of equality among all men, the fight against poverty and opposition to armed conflicts, especially the Vietnam War. He was awarded the 1964 Nobel Peace Prize, one year after his March on Washington where he delivered the famous speech I Have a Dream.
Luther King was assassinated on April 4, 1968 in Memphis by James Earl Ray, a white segregationist, causing more than a hundred riots with fatalities around the country and the declaration of the first day of national mourning for a black person.
His thoughts and teachings, seeking reconciliation and understanding among all people and communities, left behind famous quotes like this. Making a metaphorical use of a sustainable concept, Martin Luther King, Jr. explains that although the future is uncertain, there is always reason to try to make the world a better place.