The part on the use of a college education is important:
So, allowing you to compete in the global economy is the first way your education can prepare you. But it can also prepare you as citizens. With so many voices clamoring for attention on blogs, on cable, on talk radio, it can be difficult, at times, to sift through it all; to know what to believe; to figure out who's telling the truth and who's not. Let's face it, even some of the craziest claims can quickly gain traction. I've had some experience with that myself.
Fortunately, you will be well positioned to navigate this terrain. Your education has honed your research abilities, sharpened your analytical powers, and given you a context for understanding the world. Those skills will come in handy.
But the goal was always to teach you something more. Over the past four years, you've argued both sides of a debate. You've read novels and histories that take different cuts at life. You've discovered interests you didn't know you had, and made friends who didn't grow up the same way you did. And you've tried things you'd never done before, including some things we won't talk about in front of your parents.
All of it, I hope, has had the effect of opening your minds; of helping you understand what it's like to walk in someone else's shoes. But now that your minds have been opened, it's up to you to keep them that way. And it will be up to you to open minds that remain closed that you meet along the way. That, after all, is the elemental test of any democracy: whether people with differing points of view can learn from each other, work with each other, and find a way forward together.