Here in America, people went from believing that women are too frail to vote to having a major-party vice presidential candidate, in one lifetime. From Dred Scott to Emancipation in a few years. Children, foreigners, prisoners, women, blacks, the disabled and mentally ill: they’ve all gone from property to personhood. I was born at a time when the idea of a chimpanzee getting a hearing in a court of law seemed totally absurd. By the time you’re my age, we’ll wonder how we ever denied such animals their standing as intelligent creatures.”

