recycling and appropriately using previous material is GOD!
1) form of flattery to the creator
2) truly everything in the world has been said before. just because you put a spin on it or we created some new (object) that didn't exist before is irrelevant. you simply replace one noun for another. or tweak a verb to fit the new context, etc so on and so forth.
case in point - spaceballs, great comedy. when my youngest was about 5 (so I guess around 5 years ago), he got up from bed for whatever reason and walked into the room while HG and I were watching SB. He happened to walk in at the worst time when rick moranis said 'keep firing assholes'. he was half asleep and we told him that was a bad word etc etc sent him to bed. didn't think anything of it.
a couple days later he's playing Halo or one of his kid games and I hear a loud mess from the living room (basically set off a trap or whatever) and while i'm in the kitchen my son says loudly 'keep firing assholes!'
after i stopped laughing 1328 days later, i told him not to use that word anymore. however, recycling that recognizeable line at the precise time it was needed was COMPLETELY HYSTERICAL.
so i reject your notion of originality. literally we are all individuals, just like everyone else. our gene set is finite without mutation. stuff be recycled as mutation takes a bit.