"But I don't want to go around mad people," said Alice

                                                                                      "Oh, you can't help that," said the cat

                                                      "We're all and here.
                                                                              I am Mad.
                                                                You're mad."

"How do you know I am mad?"
asked Alice                                                                                    
                                      
                                                                                                   "You must be," said the cat, 
                                                                                                        "or you wouldn't be here"