"      The Religious Case Against Belief introduces three kinds of ignorance: ordinary ignorance (a mundane lack of knowledge, such as ignorance of tomorrow's weather or the reason why your stove is malfunctioning), willful ignorance (an intentional avoidance of accessible knowledge), and finally higher ignorance (a learned understanding that no matter how many truths we may accumulate, our knowledge falls infinitely short of the truth).

I think we could all use a dose of "higher ignorance."

Joe, this "higher ignorance" is what most agnostics object to. It does put a damper on investigation.