" But I was at the threshold of understanding what Shirley had meant about my not being an accident of history. Or rather: either all of us are accidents of history or none of us are. One sperm, one egg, one moment. An interruption—a ringing phone, a knock on the door, a flashlight through the car window—a single second one way or the other and the result would be an entirely different human being. Mine was just more complicated, an accident involving vials, syringes, contracts, and secrets. "

― Dani Shapiro , Inheritance: A Memoir of Genealogy, Paternity, and Love