Remarkable scientific research, mapping the human genome, reveals how similar we all are to each other. Only a tiny fraction of difference separates us one from another. Each of us says "Hello" to our individual experience here on earth, and each of us will ultimately and assuredly say "Goodbye." Between those landmark events in our lives, there are all kinds and types of "Hellos" and "Goodbyes," some happy; some sad; some funny-and all part of the...