If somebody is different from you, that's not something you criticize, that's something that you appreciate.

I reject discrimination against Muslim Americans - who are just as patriotic as we are.

One voice can change a room, and if one voice can change a room, then it can change a city, and if it can change a city, it can change a state, and if it change a state, it can change a nation, and if it can change a nation, it can change the world. Your voice can change the world.

You can't change Washington from the inside. You can only change it from the outside.

I won Iowa not because the demographics dictated that I would win Iowa. It was because I spent 87 days going to every small town and fair and fish fry and BFW Hall, and there were some counties where I might have lost, but maybe I lost by 20 points instead of 50 points. There's some counties maybe I won, that people didn't expect, because people had a chance to see you and listen to you and get a sense of who you stood for and who you were fighting for.

There's no reason why Americans should die when Afghans are perfectly capable of defending their own country.

What we can be scientifically certain of is that our continued use of fossil fuels is pushing us to a point of no return