We are convinced, as some of you may be convinced, that changing the way we produce and use energy is essential to America's economic future, that it will create millions of new jobs, power new industries, keep us competitive, and spark new innovation.

We are convinced, as some of you may be convinced, that changing the way we produce and use energy is essential to America's economic future, that it will create millions of new jobs, power new industries, keep us competitive, and spark new innovation.

Ultimately, only diplomacy can bring about a durable solution to the challenge posed by Iran's nuclear program. As President and Commander in Chief, I will do what is necessary to prevent Iran from obtaining a nuclear weapon. However, I have a profound responsibility to try to resolve our differences peacefully, rather than rush towards conflict.

Islamic culture has given us majestic arches and soaring spires; timeless poetry and cherished music; elegant calligraphy and places of peaceful contemplation.

Germany, South Korea - these are all countries that are investing massively in education. We've got to do the same thing in America.

We can't afford more top-down economics. What we need are policies that will grow and strengthen the middle class.

Making your mark on the world is hard. If it were easy, everybody would do it. But it's not. It takes patience, it takes commitment, and it comes with plenty of failure along the way. The real test is not whether you avoid this failure, because you won't. it's whether you let it harden or shame you into inaction, or whether you learn from it; whether you choose to persevere.