Do? Make money enough to support self and family and then have a good family.
Understand people. With all the talk in the news about the current Disney Snow White, got out the DVD for the old Disney Cinderella: Yup, have learned enough about people to see that the many plot events are not just incidental for the drama but examples of deep fundamentals about people. In particular understand what's important for good family formation.
Understand human societies, e.g., cultures, religions, economies, politics, war and peace.
Understand academics: E.g., a lot of academics that has done research that results in good tools to enable "Make good new things" has deep contempt for doing that.
Understand, say, math, physical science, biology, medical science, nature, technology, fine arts.
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