If you want to be a voice for peace in the world, begin by making peace a permanent condition of your own life.
You aren't your work, your accomplishments, your possessions, your home, your family... your anything. You're a creation of your Source, dressed in a physical human body intended to experience and enjoy life on Earth.
Having a mind that is open to everything and attached to nothing seems to me to be one of the most basic principles that you can adopt to contribute to individual and world peace.
Your Highest Self only wants you to be at peace. It does not judge, compare, or demand that you defeat anyone or be better than anyone.
A person standing in front of an audience without enthusiasm for his subject and his actions is disconnected from his spirit.
In a universe that's an intelligent system with a divine creative force supporting it, there simply can be no accidents. As tough as it is to acknowledge, you had to go through what you went through in order to get to where you are today, and the evidence is that you did.