Some of my most important edits came from my wife, Tara, who knows me best. She is my rock and is responsible for the confidence I have today. She st… - Dan Crenshaw

In combat, attention to detail is the barrier between life and death. We generally don't like death, so we pay attention to details. We also don't like failure. We don't like failing in our mission and we don't like failing the people who are relying on us. Ignoring the small stuff leads to both of those unenviable failures.

Writing this book was the first time I thought deeply about the lessons I'd derived from the SEAL teams, and life in general. It is quite the challenge to examine your own attributes, your failings, and then attempt to extract the lessons from your past that make you who you are today. This book is largely a product of that journey.

Everybody I knew who became a SEAL wanted to be one for a long time. You wanted this. You knew that you were, or wanted to be, an outside-the-box thinker, a sort of renegade or rebel, but also a strictly disciplined soldier. So you became that before you got to BUD/S (basic underwater demolition/SEAL training). BUD/S just made you prove it and then trained you to harness that. You learn how to exist in two different mental states: those of an ultra-aggressive combatant and a chivalrous gentleman. And you can instantaneously transition between the two. That's a warrior.