"I've seen things you people wouldn't believe. [laughs] Attack ships on fire off the shoulder of Orion. I watched c-beams glitter in the dark near the Tannhäuser Gate. All those moments will be lost in time, like [coughs] tears in rain. Time to die."
Tears In Rain is the final monologue of the Replicant Roy Batty in the movie Blade Runner. It is much quoted and has been described as "perhaps the most moving death soliloquy in cinematic history". The final form of the speech was improvised by Rutger Hauer, the actor who delivers it.