"Experience," he sneers. "The world is terrible enough without my contribution. No, I simply had ample time to observe all the cruelties of mankind. One cannot help but take in some...lessons in the process."

He wishes he didn't know things such as how long you can starve a man or deprive them of water without killing them. He wishes he didn't know which nerves can set one's whole body afire and which provoke involuntary functions. There are so many, many more ways to be cruel rather than kind.