Fashion is here to help make people look very important. If they have good taste and choose what suits them, I give them options on how they can do that. It's always sexy, and it's always with the same result: making women look fantastic.

In the morning, I practice 15 minutes of yoga.

Buy less. Choose well. Make it last. Quality, not quantity. Everybody’s buying far too many clothesI mean, I know I’m lucky, I can just take things and borrow them and I’m just okay, but I hate having too many clothes. And I think that poor people should be even more careful. It doesn't mean therefore you have to just buy anything cheap. Instead of buying six things, buy one thing that you really like. Don't keep buying just for the sake of it.

The whole basis of my work is analysing what I do and building some sort of intellectual framework. The only possible effect one can have on the world is through unpopular ideas. They are the only subversion.

My fashion advice is to have a flattering mirror and then forget about it.

The young Japanese, especially, love to wear the latest thing and when they come to London they head for my shops as part of what they want to find in Britain.

There is a real connection between culture and climate change. We all have a part to play and if you engage with life, you will get a new set of values, get off the consumer treadmill, and start to think, and it is these great thinkers who will rescue the planet.