Humor is basically a cognitive process. And it's a creative process not only on the part of the cartoonist but on the part of the viewer.

The most popular cartoon of mine is a guy on the phone looking at his appointment book and saying "No, Thursday's out. How about never, is never good for you?"

When you look back at the older cartoons, they're very much more observational cartoons. And the cartoon, the people in the cartoons are not making the joke.

It's not the ink, it's the think.

Humor of all types is notoriously subjective. That's true not only between different people but even within an individual at different times. This subjectivity is often masked when your in a group because laughter is contagious.

None of the cartoons that I ever did are basically, if they're about sex, they're about sex in sort of this, you know, this ironic way, or the way that people actually treat it.

There is humor that's just whimsy, that we smile at, but the humor that we laugh at, someone has to be - someone's dignity has to be reduced.