Robot memory in Blade Runner

Roy Batty, in Blade Runner, who tells Deckard about the things he saw in his life and how all those memories would vanish. He is about to die and give this memorable final speech:

"I've seen things you people wouldn't believe. Attack ships on fire off the shoulder of Orion. I've watched c-beams glitter in the dark near the Tannhäuser Gate. All those ... moments will be lost in time, like tears...in rain. Time to die."

...when a replicant/robot loved his life and tells what it meant.

Why do I blog this? a curious quote to be used at some point.