Just listen to what Mr. [Donald] Trump has to say and make your own judgment with respect to how confident you feel about his ability to manage things like our nuclear triad.

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.

I've been putting out the fire with gasoline.

There are three things in the world that deserve no mercy, hypocrisy, fraud, and tyranny.

Wit will shine Through the harsh cadence of a rugged line.

Doing nothing while the middle class is hurting. That's not leadership. Loose regulations and lax enforcement. That's not leadership. That's abandoning our middle class.

The only weapons I ever had were my cello and my baton.

If you don't get feedback from your performers and your audience, you're going to be working in a vacuum.

Men of vision caught glimpses of truth and beauty shining aloft like stars: and in these glimpses was a new hope for the unification of mankind through enlightenment.

Discouragement is an attitude.

You read glowing things and it doesn't feel deserved. You read things that are critical and it cuts you to the bone.

Impossible, that blind the mind, and looked out into the unknown.