This was how you wound up in the Inquisition. When you stopped being able to see any difference between Light Ones and Dark Ones. When for you, people weren't even a flock of sheep, but just a handful of spiders in a glass jar. When you stopped believing in the future, and all you wanted to do was preserve the status quo. For yourself. For those few individuals who were still dear to you.
Sergei Lukyanenko (2009). “The Twilight Watch: (Night Watch 3)”, p.344, Random House