American women often fall into the trap of, "Oh, these are my weekend clothes. These are my work clothes. This is what I wear at night." It's so old-fashioned. The French are not afraid of their luxury. Americans can be so puritanical and think, "That's my special-occasion bag." Whereas, for a French woman, it's her everyday bag.

A man in a well tailored suit will always shine brighter than a guy in an off-the-rack suit.

Put on a trench, you're suddenly Audrey Hepburn walking along the Seine.

When I'm not working I'm a slug - a full slug. I am not good at the in-between. I'm either fever-pitched or want to just pass out on a beach with a really sleazy book and eat a cheeseburger.

I not only enjoy it, I think, how do you design things that are applicable to life - unless you live it?

I love fashion because it's plugged into the zeitgeist, so it's always changing. Thirty years ago, I could never have predicted I'd be where I am today, so I know I don't know what's going to happen in the next five years or the next 20 years. I have my predictions—I'm sure technology will continue to have an impact on fashion, particularly the way people shop. I think quality will be increasingly important—we're moving away from a time of fast fashion. But really, the only constant in fashion is that you must keep moving forward, otherwise you'll be left behind.

It's funny when I hear people complain - particularly about the most fabulous parts of being a designer, like when you're getting ready to work on a show. I don't even know that I'm tired. I could stay up for six days straight! No drugs, no coffee, no nothing. I'm just so excited.