We must all learn to live together as brothers [and sisters] or we will all perish together as fools. We are tied together in the single garment of destiny, caught in an inescapable network of mutuality. And whatever affects one directly affects all indirectly. For some strange reason I can never be what I ought to be until you are what you ought to be. This is the way God’s universe is made; this is the way it is structured.
Source: Letter from Birmingham Jail