Oswald Boelcke wrote down these rules as one of Germany’s early flying aces, some of the first rules about aerial combat. You must combat the enemy within during your career probably more than the enemy you perceive outside of you. These are also some of the rules Eddie Richenbacker mastered as a Medal of Honor winner and the Ace of Aces in WWI who I grew up learning about in Ohio. I like military history and history in general. It has application to just about all things. These rules remind me of what rookies do during their career vs. advanced careerists or entrepreneurs. Maybe we need to talk about “No Guts No Glory” next.