Reflecting on his years in prison, Nelson Mandela wrote that there were dark moments that tested his faith in humanity, but he refused to give up.

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.

Families are so beautiful. Wherever we may be, looking at kids and happy families make us feel like home.

While we are floating against the current toward the future, our minds stay behind with the anchoring memories of the past.

Sekhmet crawled onto Ramses's lap and began to purr. 'The creature oozes like a furry slug, ' said Ramses, eyeing it without favor.

Courage is a quality so necessary for maintaining virtue that it is always respected even when it is associated with vice.

I could not sleep when I got on the hunt for an idea, until I had caught it. This was a kind of passion with me, and it has stuck with me.

I'm a person with a ton of energy who likes to scream and party and rock out. And there are other sides of me that are real serious.

I threw [Picasso's] drawing on the floor and in doing so, threw away about £50m.

Your heart knows the truth of openness and suffers the tense lie of your closure.

Chess is eminently and emphatically the philospher's game.

Our estimate of a character always depends much on the manner in which that character affects our own interests and passions.