As the Cheshire Cat points out, everyone's mad in Wonderland, and it is true to say that all of the characters are eccentric, at least, and if they weren't, then they wouldn't be there. The phrase...
The Mad Hatter is a character in Alice in Wonderland. He is present at the Mad Tea Party, and famously asks the riddle, "why is a raven like a writing desk?" In Lewis Carroll's book, Alice's...