Also,act for change.“change”isabigconcept，like Mandela once started a revolution of education with his colleagues during World WarⅡ.“We make education a force to write people, nations and cultures for peace and sustainable future.”Up to now ,the influence of the revolution has been spread all around the world and still making a difference to more people. For us,we don’t need to do such great changes,just begin by small steps.To solve a common problem,to let some improvement happen,or to make some creation,are also included .Change is not far from our lives. Last, I’d like to say:May the source of strength,who blessed the ones before us,help us find the way to make our youth a blessing. I hope you can find the way to make your youth a blessing,can run,so run.