Leibniz in The Monadology (1714):

And supposing that there were a machine so constructed as to think, feel, and have perception, we could conceive of it as enlarged and yet preserving the same proportions, so that we might enter it as into a mill. And this granted, we should only find on visiting it, pieces which push against another, but never anything by which to explain perception. This must be sought for, therefore, in the simple substance and not in the composite or in the machine.