Who are You? Lewis Carroll

The Caterpillar and Alice looked at each other for some time in silence: at last the Caterpillar took the hookah out of its mouth, and addressed her in a languid, sleepy voice.

`Who are YOU? 'said the Caterpillar.

This was not an encouraging opening for a conversation. Alice replied, rather shyly, `I--I hardly know, sir, just at present-- at least I know who I WAS when I got up this morning, but I think I must have been changed several times since then.'
`What do you mean by that?' said the Caterpillar sternly. `Explain yourself!'
`I can't explain MYSELF, I'm afraid, sir' said Alice, `because I'm not myself, you see.'

`I don't see,' said the Caterpillar.

`I'm afraid I can't put it more clearly,' Alice replied very politely, `for I can't understand it myself to begin with; and being so many different sizes in a day is very confusing.'
`It isn't,' said the Caterpillar.
`Well, perhaps you haven't found it so yet,' said Alice; `but when you have to turn into a chrysalis--you will some day, you know--and then after that into a butterfly, I should think you'll feel it a little queer, won't you?'
`Not a bit,' said the Caterpillar.
`Well, perhaps your feelings may be different,' said Alice; `all I know is, it would feel very queer to ME.'
`You!' said the Caterpillar contemptuously.
`Who are YOU?'