An interview with the British neurologist Oliver Sacks. One of his most famous books is Awakenings (1973) about people that suffer from the economo disease, a sleeping disorder. The interview is about his patients, his treatments, research and migraine, what he suffered from himself. In the Dutch television show A Glorious Accident (1993) six scientists talk about their visions on their work and the world. Journalist Wim Kayzer asks them: how far did you come in your understanding of our thoughts an actions? What did science really bring us at the end of the 20th century: knowledge or also understanding?