To join an army that trains its adherents in the methods of violence, you must be of a certain age. But in Birmingham, some of the most valued foot soldiers were youngsters ranging from elementary pupils to teenage high school and college students. For acceptance in the armies that maim and kill, one must be physically sound, possessed of straight limbs and accurate vision. But in Birmingham, the lame and the halt and the crippled could and did join up.
Martin Luther King Jr., Why We Can’t Wait, published 1964