It doesn’t matter where are you from, you should care about the world just as much as you care about yourself. Every thought and every action a person makes is submitted to the butterfly effect.
Teach our children to be tolerant, teach our children to enjoy the knowledge from different cultures, teach our children that if they don’t understand something (a culture, a religion, a tradition, a system) that isn’t necessary a negative thing. Agree to disagree, but having respect for every human being. Just like we eat and drink water for living, we should make a reflex out of an old saying: Don’t do to the others what you don’t want to be done to you.
The world is the greatest and most amazing symphony. If a deaf person can feel and understand music, isn’t it wright to assume people can learn to feel and understand each other, to accept the differences, to agree to disagree without unleashing the violence? I believe we can change ourselves in order to change the face of the Earth. We have the power to truly make a smiley sign to be the real universal symbol for our planet.