“Two Is One and One Is None.” This is a common expression among SEALs. Jocko explains: “It just means, ‘Have a backup.’” If you have two of something, you will break or lose one and end up with one remaining; if you have one, you will break or lose it and be screwed. One of my favorite Franz Kafka quotes is related: “Better to have, and not need, than to need, and not have.” Where can you eliminate “single points of failure” in your life or business? Jocko adds, “And don’t just have backup gear—have a backup plan to handle likely contingencies.”
