This month,* IDEAS* features the 2024 BBC's Reith Lectures by forensic psychiatrist Gwen Adshead. Her four lectures address pertinent questions she has faced in her career. To start, she asks if violence is a normal part of human life — whether we are all capable and tempted by violence — or whether it is an aberration in just some people. *The Reith Lectures originally aired on BBC Radio 4.