This week in the magazine, Oliver Sacks looks back at his experiences with drugs in the early nineteen-sixties. Here Sacks talks with John Bennet and Sasha Weiss about some of his drug-induced hallucinations, how his interest in neurology connects to his experimentation with drugs, and how one drug experience led to his writing career. Also, Jeremy Eichler on the violinist Christian Tetzlaff, and Ian Frazier on the origins of The Cursing Mommy.