There's a consultant I've known for many years, and have always had a great working relationship with, who has over time become something of a quasi-competitor. Of late, he has taken to promoting his work on his blog by disparaging our own, either through backhanded compliments or subtle swipes, and this has been a personal disappointment to me, if nothing else. Surely, the world is big enough for both of us.
I shared this disappointment with someone whose opinion I respect enormously: one of my greatest mentors in life, and someone who also knows this consultant/blogger. His response actually shook me a little. He said, "what is so strange is that he never says these things [in person]. It's like the blogger and the man are two different people. You should be proud that you seem the same."
God, I hope so. Unless you are a shut-in, eventually people meet both the blogger and the man (or woman). If those two identities don't square, its hard to see how you can truly be happy, or comfortable in your own skin. For me, that was one of the kindest things anyone has ever said to me - and if that is my "one true thing," I need little else.