We will respond to the threat of climate change, knowing that the failure to do so would betray our children and future generations

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.

Laws are confusing documents. They get in the way of justice.

Any nation that teaches and makes it's people look for miracles is making it's people shallow.

Time is the greatest innovator.

All we ask for is registration, just like we do for cars.

You get mad at me, you kick the tire, I don't get a bruise, the tire doesn't care, and you're the only one hurting. How's that working for you, Kip?

Well-coached teams are never surprised; they can adapt to anything they see.

I was a full foot taller than any child my age.

Here's the grey rule: embrace things that lead you closer to Jesus, and reject things that lead you away from Jesus.

To picture world history as advancing smoothly and steadily without sometimes taking gigantic strides backward is undialectical, unscientific and theoretically wrong.

Without questions, there is no learning.