And while you are making a difference at school, at home, at work,many of you will also want to make a bigger difference and take a larger perspective on the pressing issues of our time.Protection of our planet, eradication of poverty, reduction of inequality:these are some of the topics that, I know, some of you care about. You can do more.Imagine, imagine that you turn your social media accounts into megaphones;that you pester your friends and foes alike;that you talk to those who dissent;that you will go wild and put a bumper sticker on your smartphone.And don't forget to vote -- with your money, with your feet, with your ballot!And whatever you choose to do, ignore the barriers of mockery and conventional wisdom,stand up for your values at the local and global levels!Trust me: you will feel better. You will feel stronger.And the next generation will thank you.