“That crazy bastard may be the only sane one left.”
“Sometimes the only way to stay sane is to go a little crazy.”
“One person's crazy is another person's sane, I guess.”
“Insane people are always sure that they are fine. It is only the sane people who are willing to admit that they are crazy.”
“That bastard crazy.”
“But crazy people never think they're crazy. You're sane just by the virtue of the question.”