Metafísica carrolliana

Alice took up the fan and gloves, and, as the hall was very hot, she kept fanning herself all the time she went on talking. 'Dear, dear! How queer everything is to-day! And yesterday things went on just as usual. I wonder if I've been changed in the night? Let me think: was I the same when I got up this morning? I almost think I can remember feeling a little different. But if I'm not the same, the next question is "Who in the world am I?" Ah, that's the great puzzle!'

Lewis Carroll, Alice's Adventure in Wonderland, 1865