"I don't mind London being so attractive to the French, but what I don't want is for there to be a widening gap between the two where London is attractive and Paris less so. I want it to be self-evident that Paris is the place to be. If you leave for a professional opportunity, that is understandable, but to leave because you have the impression you can't succeed where you are, can't live in your life, that's a different matter."