" This is a powerful example because it reveals a couple of key things. The first is that you have to take into account all the data, including the data you cannot immediately see, if you are going to learn from adverse incidents. But it also emphasizes that learning from failure is not always easy, even in conceptual terms, let alone emotional terms. It takes careful thought and a willingness to pierce through the surface assumptions. Often, it means looking beyond the obvious data to glimpse the underlying lessons. "

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