Short review: I think the most important idea from this book is that we need to be open to questioning our ideas because we desire to be in relationships. If we are unable to question then we are unable to relate to those that are unlike us. Another very good section was on how we need to be able to laugh at ourselves and our beliefs. If we cannot laugh then we cannot really get to a point where we can look at what those beliefs really mean. It has 10 chapters, each about how to question a different area (government, future, history, interpretation, God, religion, offendedness, passion, media and language). Some chapters were better than others, but on the whole this was very good.
Longer review on my blog at http://www.mrshields.com/the-sacredness-of-questioning-everything-by-david-dark/