It's true, that standing up straight with your shoulders…
It's true, that standing up straight with your shoulders back may not solve the entire problem, but it is definitely a beginning and allows you to take control of the chaos around you..
— from Takeoff Into Chaos
In the book
Then the steps: Begin with your body and your bearing. Standing up straight, shoulders back, will not solve the whole problem, but it is a real beginning — it is how you start taking the chaos in hand instead of being taken by it. Get comfortable not knowing. Make peace with being unsure; accept, and even celebrate, what you do not and cannot know, because only by making peace with uncertainty do you stop being ruled by it. — Takeoff Into Chaos