Who can guess the following quote and from which book does it come from?

Question

If I had a world of my own, everything would be nonsense. Nothing would be what it is, because everything would be what it isn't. And contrary wise, what is, it wouldn't be. And what it wouldn't be, it would. You see?

Answer 1

I think I should understand that better, if I had it written down: but I can't quite follow it as you say it.

Answer 2

Alice in Wonderland?

Answer 3

Alice in wonderland