Nobody is going to delegate a lot of power to a secretary that they can't control.

I've always respected those who tried to change the world for the better, rather than just complain about it.

By speeding the transition to cleaner energy, we can improve the lives of billions of people, while also reducing the risks we face from a changing climate.

What the Democrats have to understand is that while we do need to reform our regulation and we do need more restrictions, it is true that it is capitalism and free enterprise and companies that create jobs and wealth for every American.

Progress is not inevitable. It's up to us to create it.

I've got the greatest job in the world. There's no other job in government where cause and effect is so tightly coupled where you can make a difference every day in so many different ways and in so many different people's lives. It's a great challenge.

Central planning didn't work for Stalin or Mao, and it won't work for an entrepreneur either.