"Instead of preaching cohesion, reach out to Group B. Unilaterally show them respect. Unilaterally show them friendliness. They’ll be distrustful at first, but cohesion can’t be built in a day. If respect and friendliness fail, try, try, and try again. There are no guarantees in life, but human beings are born reciprocators. If you stubbornly ask to shake a man’s hand, odds are he’ll eventually offer his in return. Once enough people walk this path of unilateral respect and friendliness, differences fade away – and cohesion silently takes its place."
