I found the book to be very philosophical and does a great job at probing what foundations our notions are built upon. A good example can be seen as the frugality and accumulation till your'e 65. Then start living. I always questioned that idea.
I get the impression he has borrowed and elaborated ideas from Napoleon Hill (Think and Grow Rich), Robert Kiyosaki (Rich Dad) and Steven Covey (7 habits). All great sources to borrow from.
I've got a crap load more books on my reading list still lol. Its good fun learning it though

Currently going through "The Ascent of Money" - really good stuff