Congress should fund research on the effects that violent video games have on young minds... We don't benefit from ignorance. We don't benefit from not knowing the science.

The rise in health care costs since Obamacare, the Affordable Care Act was passed, have been at their lowest rate in 50 years. Those savings have extended the Medicare trust fund by 11 years. So we've got a baseline of facts.So it is true theoretically that all that progress can be undone, and suddenly 20 million people or more don't have health insurance.

To me the question right now is: How do I close that first three-quarters of the achievement gap, education gap, wealth gap? What gives me the best chance to do that? And I'm pretty darn sure that if America is a just society and treating people well right now, irrespective of past wrongs, that I'm going to close a big chunk of that gap. I've seen it.

In America, we want a peaceful planet. We want people to be able to enjoy their lives and know they're going to have a bright and prosperous future, not be at war. That's our purpose.

There may be no greater tribute to Steve Jobs' success than the fact that much of the world learned of his passing on a device he invented.

I wonder, sometimes, whether men and women in fact are capable of learning from history--whether we progress from one stage to the next in an upward course or whether we just ride the cycles of boom and bust, war and peace, ascent and decline.

I've been saying for years, we're gonna have to spend a lot more time on cyber security.