Learning how to make decisions in the best possible way and learning to have the courage to make them comes from a) going after what you want, b) fai… - Ray Dalio

Then I spoke with proven shapers I knew — Bill Gates, Elon Musk, Reed Hastings, Muhammad Yunus, Geoffrey Canada, Jack Dorsey (of Twitter), David Kelley (of IDEO), and more. They had all visualized remarkable concepts and built organizations to actualize them, and done that repeatedly and over long periods of time. I asked them to take an hour’s worth of personality assessments to discover their values, abilities, and approaches. While not perfect, these assessments have been invaluable. (In fact, I have been adapting and refining them to help us in our recruiting and management.) The answers these shapers provided to the standardized questions gave me objective and statistically measurable evidence about their similarities and differences. It turns out they have a lot in common. They are all independent thinkers who do not let anything or anyone stand in the way of achieving their audacious goals. They have very strong mental maps of how things should be done, and at the same time a willingness to test those mental maps in the world of reality and change the ways they do things to make them work better. They are extremely resilient, because their need to achieve what they envision is stronger than the pain they experience as they struggle to achieve it. Perhaps most interesting, they have a wider range of vision than most people, either because they have that vision themselves or because they know how to get it from others who can see what they can’t. All are able to see both big pictures and granular details (and levels in between) and synthesize the perspectives they gain at those different levels, whereas most people see just one or the other. They are simultaneously creative, systematic, and practical. They are assertive and open-minded at the same time. Above all, they are passionate about what they are doing, intolerant of people who work for them who aren’t excellent at what they do, and want to have a big, beneficial impact on the world.

Appreciate the art of thoughtful disagreement.

From very early on, whenever I took a position in the markets, I wrote down the criteria I used to make my decision. Then, when I closed out a trade, I could reflect on how well these criteria had worked. It occurred to me that if I wrote those criteria into formulas (now more fashionably called algorithms) and then ran historical data through them, I could test how well my rules would have worked in the past. Here’s how it worked in practice: I would start out with my intuitions as I always did, but I would express them logically, as decision-making criteria, and capture them in a systematic way, creating a mental map of what I would do in each particular situation. Then I would run historical data through the systems to see how my decision would have performed in the past and, depending upon the results, modify the decision rules appropriately.