Debate can only get you so far. There can be more direct ways to prove your point. When arguments crop up, set them aside, tentatively concede, or agree to disagree. Then find another actionable way to prove your point. Execute your vision, implement your procedure, test the waters – and return with indisputable support for your position. If you are confident without question, waste no time. If you fail to deliver, you can swallow your pride and know that you tried. If you succeed, you can save face with humility and a greater sense of accomplishment. What you do is more persuasive than what you say.