It's easier to lie to yourself when you say things out loud.

“Never use five words if you can get away with one, eh? I've known dead men talk…”

“There are only two worlds - your world, which is the real world, and other worl…”

“I think I've got Fear down, but how do I take it all the way up to Terror?”

“And I thought, eight years ago, when I began carefully charting the progress of…”