I love to see what they [Michelle Obama and Kate Middleton] wear but I am not interested. It’s not natural. If you are a girl dressing up in the morning thinking about the whole world having a point of view on what you are wearing, it takes the pleasure out of getting dressed.

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.

My mother loved fashion and always had a great aesthetic. But she also considered the cost of it, with the kids, that it wasn't something to allow herself. It also probably nourished my passion and my will to make fashion, because I've always felt that, because of having a big family to take care of, she sacrificed a bit of her femininity.

I love to be in New York. And I think anybody who's a designer, who says they're doing an urban collection, thinks about the streets of New York. I cannot do an urban collection thinking of Bangkok. Or Mexico. To me, it's totally instant, totally connected with what attracts me these days. But this resurgence of a modern, cool way of being dressed is something that stimulates me and is totally right for me. Even now I don't like to show something that is some futuristic utopia.

I don't like to go beyond modernity because you think girls might be like that in five years, but in five years what I see now is going to be old; we are always going to go somewhere else. You have to bring a few novelties within what will remain.

Art is the way people see things, and I think it's great when individuals can find in fashion something they truly believe is artistic

Historical costumes from the 18th and 19th centuries look so complicated, but when you see the patterns, it's very systematic. I've always been impressed by how the patterns economize the fabric.