Speaking about the years Pratchett spent working for Alzheimer's charities, and raising awareness of the disease, Gaiman said: "What was lovely with Terry was that he would take that rage and he would do something with it ... He thought that people were good. He thought people were worth saving, worth investigating, worth understanding. He thought that people should not be lied to and tricked. He thought that people were worth it, and I think that was the driving force behind Terry's rage, and his books, and the work he did for Alzheimer's."