Believing that your qualities are carved in stone — the fixed mindset — creates an urgency to prove yourself over and over. If you have only a certain amount of intelligence, a certain personality, and a certain moral character — well, then you’d better prove that you have a healthy dose of them. It simply wouldn’t do to look or feel deficient in these most basic characteristics.

There are so many ways the fixed mindset creates groupthink. Leaders are seen as gods who never err. A group invests itself with special talents and powers. Leaders, to bolster their ego, suppress dissent. Or workers, seeking validation from leaders, fall into line behind them.

In fact, every word and action can send a message. It tells children — or students, or athletes — how to think about themselves. It can be a fixed-mindset message that says: You have permanent traits and I’m judging them. Or it can be a growth-mindset message that says: You are a developing person and I am committed to your development.