The simple answer? No. The long answer? Aa long as opinions exist, there will never be world peace. People will always have different ideals and pursue different motives. To unite many people under a single directive, motive, ideal, whatever you want is possible. But true world peace cannot be obtained due to this. Tensions will exist forever between both people and nations, which will eventually lead to conflict. Ask yourself this. If world peace can only be obtained if all humans unite under a single ideal, would you truly want to live in a world that possesses the same thought process as you? Do you want to be around 7,000,000,000+ carbon copies of yourself throughout your every waking moment for the rest of your natural life? Better to live life in conflict than at peace, because in conflict I would know that I am myself, I fight for what I believe in and stand for, not simply remain idle and live the life of a pathetic sheep.