①I learned a great fear of being wrong that shifted my mind-set from thinking “I’m right” to asking myself “How do I know I’m right?” And I saw clearly that the best way to answer this question is by finding other independent thinkers who are on the same mission as me and who see things differently from me.

②1. Seek out the smartest people who disagreed with me so I could try to understand their reasoning.

2.  Know when not to have an opinion.

3.  Develop, test, and systemize timeless and universal principles.

4.  Balance risks in ways that keep the big upside while reducing the downside.