Deckard Socks
Description: Roy's final monologue says "I have seen C-rays glowing in the dark, near the Tannhäuser Gate." Tannhäuser Gate has no explicit reference in science fiction or literature prior to the film. It is believed that it was added to give a poetic and evocative touch to the character's speech... and boy did it succeed.
Description: (retitled Blade Runner: Do Androids Dream of Electric Sheep? in some later printings) is a science fiction novel by American writer Philip K. Dick, first published in 1968. ... In connection with Deckard's mission, the novel explores the issue of what it is to be human and whether empathy is a purely human ability.