Non-violence is a term one often hears next to names like Martin Luther King and Gandhi. It may bring to mind boycotts and "passive"forms of resistance -- but when one digs deeper into the writings of Martin Luther King, we find so much more underlies the spirit and loving force of non-violence. Maria Popova of Brainpickings walks through six tenets of non-violent resistance, as outlined by Martin Luther King in his essay "An Experiment in Love."