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.

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 think more to the point, these pivotal times means something other than a politician. I understand the economy. I understand the world. I have a lot of foreign policy experience. I understand bureaucracies. I understand technology, and I understand leadership.

I too remember September 11th. I remember immediately putting into place security procedures all throughout our company that did business in 170 countries where we thought corporate interests would be attacked next. To take our country back, to keep our nation safe, we have to begin by beating Hillary Clinton.

It's that government bureaucracies crush innovation. We are falling further and further behind in our government.

When you challenge other people's ideas of who or how you should be, they may try to diminish and disgrace you. It can happen in small ways in hidden places, or in big ways on a world stage. You can spend a lifetime resenting the tests, angry about the slights and the injustices. Or, you can rise above it.

I didn't say I would cut off all communication with [Vladimir] Putin. What I said was as president of the United States, now is not the time to talk with him.