Sometimes we come up with something great, but a lot of times it just feels like work.

It is like football with coaches, like, 'We're only going to think about the next game.' It is really true, all you think is, 'Okay, we have to make a good next episode.'

I would never want the show to be a Democrat show or Republican show, because for us the show's more important than that. It isn't for everybody else in the world, but it is for us.

Once you get yourselves into things that are working on a deeper level, you just have to keep going. When you reach that deeper level, you can't go back.

We've had musical stuff in the show [South Park] forever. That's mostly because Trey's a big musical fan, and he's a great songwriter. He's been writing songs his whole life. So since the beginning, we've always put a lot of musical moments.

In our show, there's usually a comeuppance. Or, if not, it's an anti-ending. And you're supposed to get that.

It's the business of movies, it's the fights that go along with the level of budget, and more than anything, it's the creative constipation of having to live with one idea for two or three years. It's just not that fun.