Before I even came into office, I said that preventing Iran from getting a nuclear weapon was a priority.

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.

Maybe we've grown out of each other.

Such will be a great lesson of peace: teaching men that what they cannot take by an election, neither can they take it by war.

I've had a big heart my whole life; all the Korn fans know that. A lot of people told me that I was different.

There are periods in life when you get caught up in the whole field of relativity and lose your moorings with the absolute.

I don't mean to make you nervous, but unfortunately I have to.

As inclination changes, thus ebbs and flows the unstable tide of public judgment.

Betray not a secret even though racked by wine or wrath.

I'm very, very in touch with my emotions.

Your success and happiness depend on your willingness to help others solve their problems.

Is it not dangerous to have students study together for years, copying the same models and approximately the same path?