I have no doubt that Russia will and should remain a major source of energy supplies for Europe and the world.

If I don't run for president, we'll all be OK.

Just talk to me as a father - not what the Constitution says. What do you feel?

There's no political point worth my son's life.

When you go to your local police officer, your police chief in the town you live in, big or small, he will tell you the vast majority of the weapons recovered at a crime scene are either stolen weapons, and/or they have been 'lost' or stolen.

ISIS is not an existential threat to something happening to someone in the United States of America. It's a serious problem overseas, but it's confusing and frightening.

I have never left another senator out to dry. Never.

Remember, no one decides who they're going to vote for based on the vice president. I mean that literally.

In Romania, American forces have found a devoted NATO ally.

Unions did in fact build the middle class. And here's what that did. That built the United States of America as we know it.

Look folks, we know who built this country and we know who is going to rebuild it. It's you. Instead of vilifying you, we should be thanking you. We owe you.

No nation should threaten its neighbors by massing troops along the border.

I don't say very much I don't really think through. I know that sounds inconsistent with Joe Biden.

No one making less than $250,000 under Barack Obama's plan will see one single penny of their tax raised, whether it's their capital gains tax, their income tax, investment tax, any tax.

I was kind of secretly hoping one of my kids would go out and make a million bucks. So when they put me in a home, at least I'll have a window with a view.

I know I'm not supposed to like muscle cars, but I like muscle cars.

I know what I believe, I know what I want to do, and I'm just comfortable saying it, and laying it out there.

The Qataris have cut off support for the most extreme elements of terrorist organizations.

I consider myself to be as informed on American foreign policy as anyone in America.

The American public's a lot more sophisticated than we all give them credit for. And on complicated issues, I'm going to give them straight answers. And if it takes more than three minutes, I'm going to do it.

When we wrote the Constitution, the intention was to give the commander in chief the authority how to use the forces when you authorize him to be able to use the forces.

We Americans think, in every country in transition, there's a Thomas Jefferson hiding behind some rock or a James Madison beyond one sand dune.

Al Qaeda is almost all in Pakistan, and Pakistan has nuclear weapons. And yet for every dollar we're spending in Pakistan, we're spending $30 in Afghanistan. Does that make strategic sense?

Let's just be smart this time. I'm looking for smart.

I have an expression I use as I've gone around the world through my career: 'You never tell another man or woman what's in their interest. They know their interest better than you know their interest.'

Most Americans think there's already universal background checks. They don't understand why there wouldn't be a background check to purchase a weapon.

The Chinese have figured out that they have a giant environmental problem. Folks in Beijing, some days, literally can't breathe. Over a million Chinese die prematurely every year because of air pollution.

We're going to be OK because of the American people. They have more grit, determination and courage than you can imagine.

Our future cannot depend on the government alone. The ultimate solutions lie in the attitudes and the actions of the American people.

We are America, second to none, and we own the finish line. Don't forget it.

The American people have not become heartless.

No nation should stoke instability in its neighbor's country.

Quite frankly, Russian aggression in Ukraine and its illegal occupation of Crimea remind us that we still have a good deal more work to do to guarantee the strategic vision of a Europe whole, free and at peace.

The White House isn't the place to learn how to deal with international crisis, the balance of power, war and peace, and the economic future of the next generation.

The effects of climate change are real and must be acted on.

You're president, if you conclude my judgment is not the right judgment, I abide by that, but I want an opportunity to have an input.

In the middle of a recession, where we're just climbing out of it, where the economy -unemployment is still at 9.7 percent, the idea of raising taxes and reducing spending is a prescription for disaster.

No one ever doubts that I mean what I say. The problem is I sometimes say all that I mean.

I'm not big on flak jackets and tie-dyed shirts. You know, that's not me.

America's experience, like many others, teaches us that fostering entrepreneurship is not just about crafting the right economic policy or developing the best educated curricula. It's about creating an entire climate in which innovation and ideas flourish.

Fighting corruption is not just good governance. It's self-defense. It's patriotism.

Anyone who's traveled with me to Afghanistan knows why I love this book: 'War,' by Sebastian Junger.

In Delaware, the largest growth in population is Indian-Americans moving from India. You cannot go to a 7-11 or a Dunkin Donuts unless you have a slight Indian accent. I'm not joking.

I was not an activist.

Nowhere is it written that there must be conflict between the United States and China.

Saudi Arabia has allowed training on its soil of American forces.

Don't tell me what you value, show me your budget, and I'll tell you what you value.

It's overwhelmingly in the self-interest of the United States of America to have a secure, democratic friend, a strategic partner like Israel.

Putin sought to keep Ukraine weak through corruption.