To break our addiction to oil is one of the greatest challenges that our generation will have to master.

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.

Ocean is not supposed to be scared of the drops.

I have only one passion, the love of liberty and human dignity.

What is liberty? There is no such thing as absolute liberty!

Nothing is good but mediocrity. The majority has settled that, and finds fault with him who escapes it at whichever end... To leave the mean is to abandon humanity.

I like the connection with fans and people who have been supportive of me. And I love the idea of real feedback and a two-way street, which is very, very modern.

I am acutely aware of the fact that the marriage between mathematics and physics, which was so enormously fruitful in past centuries, has recently ended in divorce.

The information in DNA could no more be reduced to the chemical than could the ideas in a book be reduced to the ink and paper: something beyond physics and chemistry encoded DNA.

I'm not mad at anybody. I'm not being forced out. It is what it is. I have no reason to lie.

You don't really work together with Clint Eastwood. I mean, he takes the script and he shoots it - and he shoots it very faithfully.

The End is the Beginning is the End