Radical open-mindedness........

If you know you are blind, you can figure out a way to see, whereas if you don't know that you're blind, you will continue to bump into your problems.  In other words, if you can recognize that you have blind spots and open-mindedly consider the possibility that others might see something better than you - and that the threats and opportunities they are trying to point out really exist - you are more likely to make good decisions.
     Radical open-mindedness is motivated by the genuine worry that you might not be seeing your choices optimally.  It is the ability to effectively explore different points of view and different possibilities without letting your ego or your blind spots get in your way.  It requires you to replace your attachment to always being right with the joy of learning what's true.

-Ray Dalio,  Principles