Known for his bestselling case studies The Man Who Mistook His Wife for a Hat, Awakenings and An Anthropologist on Mars, British author and neurologist Oliver Sacks was one of a kind. Infused with enthusiasm and compassion, his writing explored the depths of human consciousness. Eleanor Wachtel spoke to Sacks in 2001 about his book, Uncle Tungsten: Memories of a Chemical Boyhood. He died in 2015. He was 82 years old.