So what will define greatness for your generation? I believe it is to use the knowledge that you have earned here to find ways, not only to connect to computers, but to connect to people; not only to bridge gaps in science, but to bridge gaps between cultures; not only to use numbers and formulas to create, but to use words to lead, and in the process, to close that canyon between ignorance and understanding.

I will not speak to Vladimir Putin personally until we've rebuilt the 6th Fleet a little bit right under his nose; rebuilt the missile defense program in Poland right under his nose; and conducted a few military exercises in the Baltic states.

People are tired of the status quo. You see that in various movements in and out of our the Republicans party, but most candidates are offering hollow rhetoric, not specific solutions.

My goodness, my hair's been talked about by a million people, you know? It sort of goes with the territory.

As president, I will ensure that the United States is the global energy powerhouse of the 21st century.That means reinstating the Keystone XL Pipeline that President[Barack] Obama rejected. It also means rolling back the regulations from this administration that limit our ability to find resources by imposing regulations on hydraulic fracturing and our ability to be energy independent by regulating drilling on federal lands. As president, I will make America an energy leader through technology and innovation.

I think the dot-com boom and bust represented the end of the beginning. The industry is more mature today.

We must move from revenue-neutral to revenue-reducing tax reform, because the federal government spends far too much money.