I've been a friend to people who may not have had perfect pasts.

If an immigrant comes here, and they're willing to create jobs, and they're willing to contribute to our economy, we have to make it easier for the kinds of immigrants we want, because that is the past of America; that's our greatness, and that will continue to be our greatness in the future.

I like lots of career politicians; I'm not against all career politicians.

I'll spend whatever it takes to get my message out and to be competitive with these career politicians. I'm not going to take a penny of special interest money.

The NFL and NBA has done a better job than we have in showing the fun side of the sport, having people talk about it whether it's on social media, commercials or the news.

Facebook lets me be lazy the way a man in a stereotypical 1950s office can be lazy. Facebook is the digital equivalent of my secretary, or perhaps my wife, yelling at me not to forget to wish someone a happy birthday or to inform me I have a social engagement this evening.

We will explore the mysteries of science and harness the power of technology and innovation. We will realise the opportunities of the digital world. Our youth will learn more from - and with - each other.

Technology can be our best friend, and technology can also be the biggest party pooper of our lives. It interrupts our own story, interrupts our ability to have a thought or a daydream, to imagine something wonderful, because we're too busy bridging the walk from the cafeteria back to the office on the cell phone.