I just finished "The Millionaire Mind". It's less a motivational book and more a case study on real millionaires and what factors have influenced their success. Some things are really surprising. I guess the most inspirational part for many people is that the typical millionaire has a lot of weaknesses and was not a perfect student. And you mentioned "how to pick a spouse wisely". I don't know if you really need to know that or were just giving an example, but it actually has a whole chapter on that topic.