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 contrariwise, what it is, it wouldn't be. And what it wouldn't be it would. You see?
Lewis CarrollContrariwise, if it was so, it might be; and if it were so, it would be; but as it isn't, it ain't. That's logic.
Lewis CarrollO Oysters,' said the Carpenter, You've had a pleasant run! Shall we be trotting home again?' But answer came there none - And this was scarcely odd, because They'd eaten every one.
Lewis Carroll