We made America more respected around the world, took on the mantle of leadership in the fight to protect this planet for our kids, and much, much more.

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.

With the world's fate resting on your shoulder - you're gonna need someone on your side.You can't do it by yourself any longer - you're gonna need someone on your side.

Don't always think about being a subordinate, otherwise you would lose your self esteem and not succeed in society.

A certain blue enters your soul. A certain red has an effect on your blood-pressure.

If I choose to bless another person, I will always end up feeling more blessed.

One of the things I've been working on for the past few months is a radical simplification of the interface.

Music is the framework around the silence.

Will you pretend you're my boyfriend?

If you can find any other view of the world which agrees over the entire range where things have already been observed, but disagrees somewhere else, you have made a great discovery.

Transitional forms are generally lacking at the species level, but they are abundant between larger groups.

Overall there may be less censorship in America than in China, but censorship and self-censorship are not only from political pressure, but also pressures from other places in a society.