It is not size or age that separates children from adults. It is responsibility.

My success was the shock of recognition, probably, rather than the quality of the work. I mean, the quality may have been fine, but there's a lot of fine work out there. It was the fact that I was doing something that at that time, nobody else was doing, except for say, Mort Saul out in San Francisco on The Hungry Eye, and "Second City" was emerging out in Chicago. Nothing in print. It was basically happening in cabaret and nothing in fiction. And certainly nothing in New York in cartoons.

I learned to distrust writers who talked about how they squeezed the blood onto the typewriter. They just don't want you to know how much fun they have - you'll resent it.

When you do the kind of work I do, everything is challenging, but probably the most challenging thing is getting up in the morning and getting on with it because it's so easy to stay in bed and not get on with it.

Cartoons were very conservative. The country was very conservative. Although the liberals were allegedly in charge for a long time, there was a very acceptable balance what people would talk about in public. And I wanted to stretch those and move further out. And as the civil rights movement began, I started doing cartoons on that and on sit-ins and I was, along with Bill Mauldin, a great cartoonist out of World War II, arguably one of two white cartoonists doing this kind of work, Bill and me.

I told the doctor I was overtired, anxiety-ridden, compulsively active, constantly depressed, with recurring fits of paranoia. Turns out I'm normal.

There's the excitement of adding color, which I didn't know anything about until 1997 or so, when I did my first picture book. So, the kid's book in particular have been exciting for me because it forced me to go back to the work I loved as a young boy reading Sunday's supplements and comics in the Sunday papers when I was six, seven, eight, nine. And number of which have been in wonderful collections, beautifully reproduced.