No doubt there are myriad answers to this question, but today, I will simply share this quote:
I am convinced that men hate each other because they fear each other. They fear each other because they don’t know each other, and they don’t know each other because they don’t communicate with each other, and they don’t communicate with each other because they are separated from each other. ~~ The Rev. Martin Luther King Jr., Cornell College, Oct. 15, 1962
Communication: the antidote to hate and fear.
So what are you waiting for? Communicate already!