Stumbling and Mumbling has a very good "thought for the day" as he prepares to quit London.
I've always maintained that freedom was always an expression of will. If you want to earn squillions, you pretty much have to be in London to pay for the cars, the schooling, the big house etc etc. You need - what - £250,000 a year. But if you are prepared to forego much of this, perhaps you need as little as £20,000 pa.
Or much less if you really want to.