My father was a sociopath and I could never explain his evil to others until I read this book. As children, my sisters and I lived in constant fear for our lives and were sexually and physically abused. My father never showed any conscience or remorse. He was without normal human feelings. He eventually shot himself after my mother finally left him. At the funeral friends came up to us and said, "At last your free". The description of sociopath fits my father to a T. Suicide is a common solution for them when they have used up all their options.
I was glad the author warned about C.E.O. s and politicians. Leaders like Hitler and Pol Pol were certainly sociopaths and this mental deficit explains much of the evil in the world. The stupid ones end up in jail and too often, the smart ones end up running corporations and governments.
I thought the author cited enough scientific studies of psychopathology to support her conclusions. I can't recommend this book highly enough. I found the negative criticisms of this book curious and naive.
Thinking and emotions are closely tied together - certainly are inseparable for normal human beings. For sociopaths, conscience and compassion do not enter the picture. As the author says, "We need to know..." to be able to recognize these people and protect ourselves. Her advise to get them out of our lives is sound. I am grateful Martha Stout wrote this important book and I recommend it to all my friends and family.