" What was going on? The mystery was, in fact, easy to solve. It was precisely because the nurses in low-blame teams were reporting so many errors that they were learning from them, and not making the same mistakes again. Nurses in the high-blame teams were not speaking up because they feared the consequences, and so learning was being squandered. "

― Matthew Syed , Black Box Thinking: Why Some People Never Learn from Their Mistakes - But Some Do