Some quoteable quotes from President's Obama speech to schoolchildren today:

Where you are right now doesn't have to determine where you'll end up. No one's written your destiny for you, because here in America, you write your own destiny. You make your own future.

No one's born being good at all things. You become good at things through hard work. You're not a varsity athlete the first time you play a new sport. You don't hit every note the first time you sing a song. You've got to practice. The same principle applies to your schoolwork.

But whatever you resolve to do, I want you to commit to it. I want you to really work at it.