"The statistics on sanity are that one out of every four Americans is suffering from some form of mental illness. Think of your three best friends. If they're okay, then it's you." -- Rita Mae Brown
Kevin Dutton talks about his book, "The Wisdom of Psychopaths: What Saints, Spies, and Serial Killers Can Teach Us About Success."
Susannah Cahalan talks about her book, "Brain on Fire: My Month of Madness."
Daniel Smith talks about his book, "Monkey Mind: A Memoir of Anxiety."
Neurologist Oliver Sacks talks about his new book, "Hallucinations."