The deepest insight I personally took away was from #28: "Of all the forms of courage, the ability to laugh is the most profoundly therapeutic." I didn't expect much from this chapter -- I think we all understand that laughter is therapeutic. But that wasn't the focus -- the focus was on how all laughter is a form of courage. I'll be thinking about his wise words for a long time... I may get a tattoo:
Above all, to tolerate the uncertainty we must feel in the face of the large questions of existence requires that we cultivate an ability to experience moments of pleasure. In this sense all humor is "gallows humor," laughter in the face of death...We usually smile when we meet people for the first time. When we do so we are conveying more than friendliness. Smiling is an indication of "good humor," and represents an acknowledgment of the joke embedded in our common humanity: Things may be grave but they need not be serious.