We've got to identify new strategies to use cleaner energy, because that is a recipe for reducing the overall amount of pollution that's out there.

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.

Discipline leads us to desire, which matures into delight.

To hope is not to demand.

In educating the young we steer them by the rudders of pleasure and pain

Conservation means the wise use of the earth and its resources for the lasting good of men

When you're writing a novel, you're still telling a story. But you're telling it very differently. It's a craft like anything else.

You can always pound out demos and send them to record companies, but most of the successful bands I've seen are the ones that can sustain themselves.

There is a certain tendency on the part of some Americans to treat the UN as a multilateralism à la carte where you pick and choose where it suits you and when it doesn't suit you, you pull back.

He had on a funny T-shirt, as usual. Today's featured acartoon figure running from a giant T. rex, and it read EXERCISE: SOME MOTIVATIONREQUIRED.

I consider myself an inventor, entrepreneur, and author.

It's a good thing we have gravity or else when birds died they'd just stay right up there. Hunters would be all confused.