Jessica Stillman wrote an article for Inc. titled How Not to Be Stupid, based on advice from psychology professor David Dunning, who is famous for his research known as the Dunning-Kruger effect.
“The Dunning-Kruger effect… says that while the competent are often plagued with doubt, the incompetent tend to be blissfully sure of their excellence.”
“Optimism has its place in life but not, apparently, when you’re trying to make a truly smart decision.”
“Give up on black-and-white, yes-or-no style thinking, and instead try to think in terms of probabilities.”
“Get better at saying ‘I don’t know'” (intellectual humility)