Eliezer Yudkowsky. Harry Potter and the methods of rationality (№ 405642)

Now I know you, Harry thought, waving his wand once, two, three and four, sliding his fingers to a precisely verified distance. I understood your nature. You symbolize death, according to some law of magic you are a shadow that death casts into the world.
And death is something I will never take.
It's just a childhood disease that the human race hasn't outgrown yet.
And one day...
We'll get over it...
And people will never have to say goodbye again...
He picked up the wand and pointed it precisely at the dementor.
- EXPECTO PATRONUM!