Americans are always a little bit insecure.

Great style means having a point of view, but evolving your look is even more important. Rushing to embrace every trend will leave you fashionable, but not stylish

My personal style icon is Steve McQueen. My design style icon is a mix of everyone from Jackie O. to Lauren Hutton to my mother.

Every woman should own a shirtdress

You make sexiness strong by balancing it out: something familiar with something unfamiliar, something masculine with something feminine, something streamlined with something rococo. It's a Yin and Yang. Women are made of layers, your mood shifts, no one is neither one extreme nor the other.

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.

Learn to invest in the best quality you can afford and wear pieces in different ways.