Every one in this world has his or her own ideas . People need to respect and accept others idea. It doesn't matter if someone said the right thing and you don't know how to respond, what matters is to know more to expand your knowledge. These thoughts destroyed the Arabic cultures Arabic cultures had the most intelligent people in the world . They Invented the colleges idea , they made the first surgery in the world. However, Arabic people started to refuse others ideas and they started to destroy their beautiful culture Unfortunately .