We are each other's reference point at our turning points.

What surprised me was that within a family, the voices of sisters as they're talking are virtually always the same.

From the psychological jousting between sisters in the early family arena emerge the first tentative boundaries of their personalities.

We are each other's reference point at our turning points.

Every articulate family ... generates its own stories, explanations and myths to illuminate the differences in temperament and talent among its children, the lines of allegiance and influence between parent and child.

A sister is both your mirror - and your opposite.

We are sisters. We will always be sisters. Our differences may never go away, but neither, for me, will our song.