By Mary Eberstadt, First Things - There’s an observation by Pope Paul VI that’s been quoted many times, including by Pope John Paul II and Pope Benedict XVI. It is this: “Contemporary man listens more willingly to witnesses than to teachers, or if he listens to teachers, he does so because they are witnesses.” So I'm also going to stand and deliver as a witness. Following are three stories about anti-Semitism from different moments in my own life. Like all stories, their details are particular. But their lessons are universal, applying to us all.