“Sometimes I feel sure he is as mad as a hatter and then, just as he is at his maddest, I find there is a method in his madness.”

“The Mad Hatter: "Would you like some wine?"
Alice: "Yes…"
The Mad Hatter: "We haven't any and you're too young.”

“A madman's ravings are absurd in relation to the situation in which he finds himself, but not in relation to his madness.”

“Why is a raven like a writing desk? - Mad Hatter
I haven't the slightest idea. - Alice”

“Alice: This is impossible.
The Mad Hatter: Only if you believe it is.”

“Mad Hatter: “Why is a raven like a writing-desk?”
“Have you guessed the riddle yet?” the Hatter said, turning to Alice again.
“No, I give it up,” Alice replied: “What’s the answer?”
“I haven’t the slightest idea,” said the Hatter”

“And the conversion of the other Don Quixote — he who was converted only to die — was possible because he was mad, and it was his madness, and not his death or his conversion that immortalized him, earning him forgiveness for this crime of having been born. Felix culpa! And neither was his madness cured, but only transformed. His death was his last knightly adventure; in dying he stormed heaven, which suffereth violence.”

“Goats," said Maxwell Hyde, "are a special case. Mad as hatters, all of them.”

“Men will always be mad, and those who think they can cure them are the maddest of all.”

“Mad Hatter: Would you like a little more tea?
Alice: Well, I haven't had any yet, so I can't very well take more.
March Hare: Ah, you mean you can't very well take less.
Mad Hatter: Yes. You can always take more than nothing.”