• 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 (2010). “Alice's Adventures in Wonderland and Through the Looking-Glass”, p.8, Cosimo, Inc.