"Cheshire Cat: If I were looking for a white rabbit, I'd ask the Mad Hatter. Alice: The Mad Hatter? Oh, no no no... Cheshire Cat: Or, you could ask the March Hare, in that direction. Alice: Oh, thank you. I think I'll see him... Cheshire Cat: Of course, he's mad, too. Alice: But I don't want to go among mad people. Cheshire Cat: Oh, you can't help that. Most everyone's mad here. [laughs maniacally; starts to disappear] Cheshire Cat: You may have noticed that I'm not all there myself."

Source: Lewis Carroll, Edward Wakeling (1994). “Lewis Carroll's Diaries: Containing Journal 4, January to December 1856”