“You can kill a man but you can't kill an idea.”
by Meg Whitman
“You can kill a thousand; you can bring an end to life; you cannot kill an idea" by Shimon Peres
Plus can you kill something abstract. Something that doesn't exist. Something that is subject to your whims that when you say die it asks how and when you ask it to be alive it stands on its grave.
Look at Eddy, he gets chopped like wood, and what does he say "Tis, but a minor flesh wound.". Not really but the quote from the holy grail seemed fitting.
I think therefor I am.