Alice in Wonderland

Alice in Wonderland was the title of a book by Lewis Carroll from Earth, as well as the general name by which the book and its sequel, Through the Looking-Glass, were collectively known.

Behind the scenes
The actual title of Carroll's book is Alice's Adventures in Wonderland, though the shorter Alice in Wonderland is widely used.

The Fifth Doctor was misquoting Alice in The Five Doctors; in the book it's the White Queen, not Alice, who has sometimes believed "as many as six impossible things before breakfast".