Kit: Dr. Thredson, he... he said some things that are starting to make sense.
Grace: Well, if you were crazy, they wouldn't make sense to you. Self-doubt is a sure sign of sanity.
Kit: Wait, you're confusing me. If... you're saying that if I'm crazy, then I wouldn't believe Dr. Threadson, but if I'm sane, then my crazy stories would be true?
Grace: I have no idea what you just said.