I realized that my righteous indignation was a form of entertainment for me. I loved getting pissed off at injustice. I didn't do anything about it, I just liked the feeling of being pissed off.

With both Caddyshack and Vacation, it's not like the subjects were serious enough that they engaged my interest for another round. I love the characters, and the actors were great, but I didn't see the need to make another Vacation movie.

Somebody once told me that if you laugh at a George Bush joke, or you send an email cartoon to your friends that makes Bush look like a fool, you feel like you've done something significant. But really, what have you actually done? Just expressing contempt for your leaders doesn't really accomplish anything.

It's a great luxury for me to be able to write on the films that I direct, and kind of a nice thing to be able to write enough to get credit, which is difficult for a director.

I can't imagine a successful comedy movie without a successful comedy performance at the heart of it.

You don't have to know much, just a little bit more than everybody else.

Ive never been a big believer in ghosts or the spirit world, and for me, that was part of the point of the movie, ... What the Ghostbusters represented was the triumph of human courage and human ingenuity. People create their own monsters. Our fears come from within us, not outside.