Years ago I was introduced by a mutual acquaintance to a woman who greeted me with "It's so nice to meet you. I know all about you." "You know all about me"...? Eek! How presumptuous. At the time, both my mother and my then wife of some 25 years knew me, but neither knew all about me. My best friend at the time knew me, but even he didn't know all about me. I don't remember exactly how I responded to the lady...probably with a cursory 'Thank you, nice to meet you.', but the gist of that brief encounter long ago has stayed with me over the years -- not because it was significant, but because of the audacity of that lady's statement, 'I know all about you.' Really. The online Dictionary.com defines the word "know" as: - to perceive or understand as fact or truth; - to have established or fixed in the mind or memory; - to be cognizant or aware of; - be acquainted with. Over the years I have developed a somewhat dubious theory, or better, a personal philosophy about "knowing", to wit: "It is important for me to know what I know. It is equally important for me to know what I don't know (lest i attempt to pilot a Boeing 787). Also, in the interest of time, a wise person should also be able to distinguish between that which is unknown but knowable, from that which is unknown and ultimately, unknowable." The latter of which may be a gray area. What do you know?