"I've been looking at some video clips on YouTube of President Obama - then candidate Obama - going through Iowa making promises. The gap between his promises and his performance is the largest I've seen, well, since the Kardashian wedding and the promise of 'til death do we part."

"At a time when nobody thought we'd ever see a new steel mill built in America, we took a chance and built one in a corn field in Indiana. Today Steel Dynamics is one of the largest steel producers in the United States."

"Even though I love solar and love wind, like most people do, I like the renewable sources, they alone are not going to get America energy independent."

"Leadership is not a title, it is the realization that the silence between the notes creates the music."

"In the next 10 years, I expect at least five billion people worldwide to own smartphones, giving every individual with such a phone instant access to the full power of the Internet, every moment of every day."

"Words have no power to impress the mind without the exquisite horror of their reality."

"Now we have a problem in making our power credible, and Vietnam is the place."

"Imagination is not only the uniquely human capacity to envision that which is not, and therefore the fount of all invention and innovation. In its arguably most transformative and revelatory capacity, it is the power to that enables us to empathize with humans whose experiences we have never shared."