She, more than anyone else, revived London as an international city of finance and commerce. The reason? Light regulation, loose immigration laws, liberal labor laws ... and human nature. It's amazing what government can do when it chooses to do little. And, of course, Thatcher's legacy is a London mayor who still thinks of himself as a socialist, a swinging nightlife scene, thriving arts and commerce and vibrant multiculturalism. Not quite what she had in mind. But freedom often surprises.