[Henson:] I didn’t call him a frog.
[Interviewer:] Right, he was just Kermit the thing.
[Henson:] Yeah, all the characters in those days were abstract because that was part of the principle I was working under.… I still like very much the abstract characters and some of those abstract characters I still feel are slightly more pure. If you take a character and you call him a frog, or like Rowlf, our dog, call him a dog, you immediately give the audience a handle. You’re assisting the audience to understand; you’re giving them a bridge or an access. And if you don’t give them that, if you keep it more abstract, it’s almost more pure. It’s a cooler thing. It’s a difference of a sort of warmth and cool.… [I]n terms of going commercial and going broad audience, you want to reach the audience as much as possible, and you need those bridges.
Quoted in MAKE ART MAKE MONEY, Elizabeth Hyde Stevens