In French we have this word déclic. It's when you have, suddenly, a light shining and you say, "This is what I want to do."

Today, kids are much more aware of what fashion means, but when I was growing up, it was popular, but not as popular as today. Like any kid, I was fascinated by drawing. But when some of the kids let go, I kept drawing and drawing.

As designers, we do so much with material and construction. It's really architectural; it comes close to building. A scent is so immaterial. It's really about emotion and sensation. Clothes are too, but it's not the same.

I believe there is a moment growing up when you build your own mood board. You do a collage - you collect a few things, a few images that will be so important for your future choices. Not only aesthetic, or what you like for dressing, but your artistic choices. The room where I put papers and pictures and posters on the walls when I was a kid, it's still very strong in my head today. This movie poster or that portrait of a girl I took from a magazine, deep inside, is inspiration that comes back all the time.

That's what I think when people do their "best stuff" collection. When you start to think, "Oh, I will just present my 10 years of work," that's not a good sign.

I remember Grace (Coddington) looking at me and said, 'Can you do something?' and I was like, 'OK, how long do you give me?' and she said 'Half an hour?', I said 'Forty-five minutes?'

With my designs and my ideas, I want to please myself first. I'm always very stressed about making a new proposition every season. But in a way, it's a kind of addiction. In another way, it's a crazy pressure. I try to stay quiet about the whole situation, because fashion itself can be crazy, and everyone wants a part of you.