Don Brash has just finished writing a book evaluating his successes and failures.
As a former Reserve Bank governor, a former National Party leader and a former Act Party leader, he has no shortage of material to work with.
The book also canvasses some of his pet subjects such as China.
He has a chapter on religion - his father was a lay moderator in the Presbyterian Church - and a chapter on drug policy - he famously hijacked his own law and order policy announcement as Act leader in 2011 by saying his personal view was that marijuana use should be decriminalised, despite never having used it.
The book, Incredible Luck, will be out in March or April.