There's one issue that will define the contours of this century more dramatically than any other, and that is the urgent and growing threat of a changing climate.

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.

Why are there trees I never walk under but large and melodious thoughts descend upon me?

Ignorance is fertile ground.

I did my homework, of course, by inhaling as much literature as was available to find, so that when it was time to shoot I could hopefully exhale [ Harriet Tubman ].

We are who we are, and when you accept people instead of trying to change them to fit your needs, your relationships can fully blossom.

Forever is made up of nows.

If you think your initial market might be too big, it almost certainly is.

Arrogance is an exaggeration of the truth.

My dad knew that if I wanted to make a career out of it, I needed to go to NASCAR rather than dirt racing. Personally, I like dirt racing a little bit more. It's a little more fun.

There's nothing wrong with ankles. But only if you're playing football in the park.

I saw it his eyes. I felt it when he touched me.