This month I am celebrating my 50th birthday, and, so far, I'm finding it to be a wonderful time of life. Below are 10 reasons I feel that way:On a trip to Maui, relaxing after finishing latest revisionsto The Conflagration.Happiness:When I was in my late 30s, I read a book, How We Choose to Be Happy, that compiles studies on happiness. I don't remember the details, but the gist of it was that the happiest people are those who figure out for themselves what brings them joy and follow their own p...