A hurdle familiar to any mother is learning to view her baby as separate from herself. How many of us have answered questions about our babies in first-person plural? -- How old is your baby? -- Oh, we're 22 months now. Well, no, we're not; he is. Yet we nod in universal understanding of the profound sense of oneness that evolves in part from pregnancy. For nine months, mother and baby are inextricably "we" -- linked in body and spirit, every move and morsel belonging to both. These thoughts surfaced during Sarah Palin's latest public scolding of someone who spoke...