We've got to make sure that teachers are respected, that they are rewarded, that young people like yourself who have talent and want to work with people, that you're able to support yourself and live out a great life being a teacher.

I don't take a dime of their [lobbyist] money, and when I am president, they won't find a job in my White House.

99.9% of plumbers make less than a quarter million dollars a year, and I'm going to give Joe a break whether he wants it or not.

I've always viewed the Paris Agreement as a starting point. If you look at all the commitments that have been made by all the countries, it's still not sufficient to deal with the very dangerous situation we face. What it has done is that it created an architecture whereby as technology improves, as we find new clean sources of energy, as we make our economies more efficient, then gradually we can turn up the dial and improve the outcomes of Paris.

The pyramids are one of those things that live up to the hype. They're elemental in ways that are hard to describe.

When Americans are called on to innovate, that's what we do - whether it's making more fuel-efficient cars or more fuel-efficient appliances, or making sure that we are putting in place the kinds of equipment that prevents harm to the ozone layer and eliminates acid rain. At every one of these steps, there have been folks who have said it can't be done. There have been naysayers who said this is going to destroy jobs and destroy industry. And it doesn't happen because once we have a clear target to meet, we typically meet it. And we find the best ways to do it.

There's nothing that America can't handle if we actually look squarely at the problem. ...Change depends on our actions.