Nicola Formichetti

When I first moved to London for university, I was already a big fan of Diesel because, in the nineties, Diesel was, like, the brand. The stores were the place to go. It wasn't workwear like Levi's or G-Star.

Working in a store and being a shop assistant, if you don't know what to do and you like fashion, I think it's a great way of getting into the business because you do windows, cleaning, and everything. That was my school for two years, working in a shop, and that's how I met people in magazines and designers.

I don't think fashion has to change every five minutes. I'd like these to be clothes you can wear for a long time - ten, 20 years; pass on to your daughter. Why buy vintage when you can open your own closet!