I hope you don’t listen to this. I hope you choose to broaden, and not contract, your ambit of concern.

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.

The great artists of the world are never Puritans, and seldom even ordinarily respectable.

Ever notice the word 'rough' in through? There is truth to that, though the way may be rough, we are still able to get through it.

There is a point when tears don't work to wash things away anymore. Grabbing for breath has now broken my fingers.

Love you all the time, 'cause when I close my eyes, I still can see your smile, it's bright enough to light my life

Don't you agree, fuzzball?

You don't get better if you win all the time. You look at yourself more when you lose.

The frontier orbital approach was further developed in various directions by my own group and many other scientists, both theoretical and experimental.

Two things that can never be contained? Velociraptors and zombies.

The two super-powers cannot divide the world into their oyster.

I take the subway four times a day, or close to it. I just love the subway! My grandfather worked as an electrician when they were digging the subway.