I rarely stay at home when I'm in New York. I'm always doing things. It brings you so much energy.

Even during the golden age of fashion, you had haute couture houses where the designers didn't have money.

When the economy changes, it's not like you want to start eating bad-tasting chocolate.

Everything I have is ready to wear, but I have the ability to have different options within the same brand. I have the Theyskens' Theory collection where it's a personal approach to how I build the collection where I fuse more fashion-y ideas and it has my name on it. So it's really something very research- and labor-intensive. And then I have the Theory brand where I infuse all points of view about fashion at large, and it's more global. It's really about making something succeed. You have an instant relationship with stores, and with sales teams, and people that are in the place.

I don't think couture will die. But it should have no pretension that it will conquer the world. It's not something that will disappear because all you need is a thread and a needle to start making something couture.

When I was young, watching historical movies made me feel absolutely sublime. But the first few times I visited costume museums, I was really disappointed because it was not at the level I saw in movies. It was not the level of the image I'd imagined.

When I started at [Nina] Ricci, I did street wear for very cool, young girls but the price point was for the fourth floor of Bergdorf Goodman next to Carolina Herrera. My cool girls cannot afford it.