"Paradox: I have been tasked with overseeing the end of your universe and, regardless of what the pencil-pushers upstairs would prefer, I will not waste my life watching it die slowly of natural causes. We used to just prune these things -- Simple. Elegant. Efficient. But I'm told the TVA doesn't like to do that anymore. Well, I do. And no matter what my so-called superiors say, the multiverse does not need a babysitter. We need a mercy killer. And in this instance, I am the mercy killer!"
January 1, 1970
https://en.wikiquote.org/wiki/Deadpool_%26_Wolverine