Always make an effort to start with what you agree on.
We are wired to focus on the negative feedback, on the opposite opinions, on the rejections, on the new ideas. And so, we need intention to spot agreement.
Next time you get a difficult email, a new plan, a lengthy piece of feedback, a written comment, the notes from a difficult conversation, the minutes of a heated meeting. Print it out, take two markers of different color, highlight what you agree on with one and what you disagree on with the other.
Be honest and impartial. You will have set yourself on a learning path.