The neurologist, who died Sunday, saw "infinitely moving, dramatic, romantic situations" during his decades studying the human brain. Fresh Air remembers Sacks with two interviews from 1985 and 2012.
His book Awakenings, about reviving patients from a catatonic state, was turned into a 1990 film. He also wrote more than a dozen other books, including The Man Who Mistook His Wife for a Hat.