There's a kind of poetic aspect to inert gas. And remember, first of all, they were completely unknown a hundred years earlier. We just didn't know about them. And then when they were discovered in the atmosphere, the idea that this is a material that would breathe in and exhale and becomes part of us for a while made it even more intriguing. The names, the Greek names, are interesting, too - if you translate neon, xenon and so forth are kind of interesting.

I mean, part of the justification for art is art history, the fact that you're part of this tradition. You can't really operate outside of it. So looking for what this work is really about, if I look at Velázquez, if I look at Las Meninas or The Tapestry Weavers [1657] or something and really study it and try to figure out what that painting is really about, then I find relationships between what I'm trying to do and what he was doing.

You can't have silence on the radio; people will turn away from the station.

So it sort of dawned on me that you have to build into your work the fact that it's going to be shown in different kinds of places and different kinds of light. And the fact that the surroundings and where you're going to be shown is always changing, so that should really not affect the meaning of the work. It should be part of what the work is about.

I like challenge. I like to be put into a situation which I haven't done before. Something new presents itself and I see if I can somehow finagle it into making a work of art out of it.

I am always producing work, but there is always a sort of deadline where you have to finish work. I don't do it for a show. In other words, I am not like a fashion designer where I have a, you know - I have to put out the full line or I have to put out the summer line like that.

The Vogels were quite strict in what they acquired. They never acquired a projection. They never acquired a sound piece. They were never big on photos that much, unless it was photos documenting something. They had some limitations into what they bought.