“Don't ever call me mad, Mycroft. I'm not mad. I'm just ... well, differently moraled, that's all.”

“I'm not mad. I've just read different books.”

“Why do you persist in being so frivolous, Urgit?""Why don't we just call it a symptom of my incipient madness?""You're not going to go mad," she said firmly."Of course I'm going to go mad, mother. I'm rather looking forward to it.”

“Cheshire Puss,' [Alice] began, rather timidly, "`But I don't want to go among mad people,' Alice remarked. Oh, you can't help that,' said the Cat: `we're all mad here. I'm mad. You're mad.' How do you know I'm mad?' said Alice. You must be,' said the Cat, `or you wouldn't have come here.' Alice didn't think that proved it at all; however, she went on `And how do you know that you're mad?' To begin with,' said the Cat, `a dog's not mad. You grant that?' I suppose so,' said Alice. Well, then,' the Cat went on, `you see, a dog growls when it's angry, and wags its tail when it's pleased. Now I growl when I'm pleased, and wag my tail when I'm angry. Therefore I'm mad.”

“i'm going mad, i told myself. let me not be mad.”

“Smitty leaned forward, resting his arms on this raised knees. "I am fixin' to get mad, Jessie."You're fixin' to get mad?""Yeah.""Why don't you just get mad?""I'm not there yet. But I will be if you don't start talking to me."Smitty to Jessie Ann”