“Welcome to another night in the life of Sonia Sotomayor, Supreme Court justice, current queen of the best-seller list and suddenly the nation’s most high-profile Hispanic figure. She may be a relative newcomer to national life, plucked from circuit-court obscurity less than four years ago. But the release of her new memoir, My Beloved World, suggests that she has broader ambitions than her colleagues, to play a larger and more personal role on the public stage.”