Eric Greitens's story of his life, and of the widely varied experiences he has had is a pretty good read.
Greitens grew up fairly privileged, but always had a desire to help and serve others. He combined his love for humanitarian service with a fighter's desire to conquer and achieve, and managed to make them into a life of which he could be proud.
The book is a bit scattershot, focusing longer on some aspects of the author's life than others -- the main sections concerned his collegiate boxing training, his college and post-college humanitarian missions to a variety of countries, and his training as a Navy SEAL. There were some other areas that I would have liked more detailed description of, but at the same time, I can see how he was trying to fit everything into the theme of the heart (charity work) and fist (boxing/military) working together in order to try and improve the world.
This book reminded me of the story of Dr. Paul Farmer, except Eric Greitens came off a lot more relateable and less like a self-righteous prig.
On the whole I'd recommend this, particularly to those who are struggling to figure out how they might combine power and compassion in order to help others.