<p>I am reminded of when I went to try out for Jeopardy years ago. There were about a hundred of us standing in line outside waiting to go inside and take the qualifying exam. And there were 3 or 4 who were loudly showing off how much stuff they knew to the people around them. But after the test results were announced all the braggarts had to quietly slink away. None of them had passed. The six of us who passed had all been among the quiet folks prior to the test.</p>