This collection of bits of wisdom begins with Oprah Winfrey recalling a 1998 interview during which the late, great film critic Gene Siskel asked her, “[W]hat do you know for sure?” “Now, this was not my first rodeo,” Oprah writes. “I’ve asked and been asked an awful lot of questions over the years . . . but I have to say, the man managed to stop me in my tracks.” In the years following that interview, Oprah wrote monthly columns called “What I Know for Sure” in her eponymous magazine.
