We want our children to live in an America that isn't burdened by debt, that isn't weakened by inequality, that isn't threatened by the destructive power of a warming planet.

You can’t let your failures define you. You have to let your failures teach you.

Change will not come if we wait for some other person or some other time. We are the ones we've been waiting for. We are the change that we seek.

Keep exploring. Keep dreaming. Keep asking why. Don’t settle for what you already know. Never stop believing in the power of your ideas, your imagination, your hard work to change the world.

When ignorant folks want to advertise their ignorance, you don't really have to do anything, you just let them talk.

Just because we have the best hammer does not mean that every problem is a nail.

Change is never easy, but always possible.

Don’t ever let anybody tell you that your efforts don’t matter or that your voice doesn’t count. Don’t ever believe that you can’t make a difference. You have.

Where you are right now doesn't have to determine where you'll end up.

Learning to stand in somebody else's shoes, to see through their eyes, that's how peace begins. And it's up to you to make that happen. Empathy is a quality of character that can change the world.

If somebody is different from you, that's not something you criticize, that's something that you appreciate.

When we die, we go into the arms of those who remember us.

Computers are famous for being able to do complicated things starting from simple programs.

My parents treated my like I had a brain - which, in turn, caused me to have one.

Philip Glass once told me, "They can always copy what you've done, but they can't copy what you're going to do."

Do not free a camel of the burden of his hump; you may be freeing him from being a camel.

Beyond a certain point, that was all a mother could do for her children - Hang around long enough to drive them crazy.

Ending poverty and ensuring sustainability are the defining challenges of our time. Energy is central to both of them.

Always I believe that I can play better. But I am happy.

Where had I been that I didn't know about imaginary friends? I could see the point of it. How a lost part of yourself steps out and remind you who you could be with a little work.

It has been said that the gate of history turns on small hinges, and so do people's lives. The choices we make determine our destiny.