Experts always know everything but the fine points. When I took my citizenship exams, no one there knew how the White House came to be called the White House.
Anger is a killing thing: it kills the man who angers, for each rage leaves him less than he had been before - it takes something from him.
It has an air about it of having strolled in from the street with a few tricks up its sleeve, and if everybody would relax, please, it would do its best to pass the time whimsically.