"Identify and don’t tolerate problems."
Having problems isn't bad - it's inevitable. And finding success isn't tied to a lack of problems but to one's ability to identify and fix them.
Problems are opportunities in disguise. They may be painful, but solving them makes you better. Figuring out their solutions is how you grow.
Too often people are afraid of problems. They fear their own incompetence and fail to acknowledge their weaknesses. But like we learned in 1.10, Einstein isn't very good at basketball.
So a problem affords two solutions: Get better or get help.
As Dalio writes, "Though it won’t feel that way at first, each and every problem you encounter is an opportunity."
Identify your major problems, figure out their root causes, and get to fixing them. It's a direct path to growth.