What is the root of most conflict among people today?

The moment you start believing in things that are not a living experience for you, you are natural conflict. Now, what is the intelligence in moving into belief? The only thing is your ego feels comfortable "I know" is the only way you can make the ego grow, isn't it? "I don't know" is a big loss for the ego. When you say, "I don't know," you are incapable of conflict, you are a very humble and wonderful human being. See, you may be a very peaceful, nice human being today, but when somebody challenges your belief tomorrow, anger will arise within you, because you are so deeply identified with what you believe in. The moment you are identified, your identity is threatened with the belief system. Your survival instinct takes over and you will fight. We are going on talking about bringing peace to the world. I was a delegate in the United Nations for the Millennium World Peace Summit where we talked about bringing harmony and peace among religions. Why the need for tolerance and forgiveness? You think somebody's wrong, you're right. Now you think he has to be saved. He thinks you have to be saved. Both of you believe things that you do not know really. If you realize "I don't know," you cannot fight. Without being capable of bringing peace into your own being, there is no way you are going to be capable of bringing peace to the world. Isn't it so?