"Only I don't know what hit me.

You'll have to put it in my hand, Doctor." "I will, I will," Dr.Hammerfield spluttered.

"How do you know?
You do not know that Bishop Berkeley attested that his metaphysics did not work.

You have no proof.

Young man, they have always worked." "I take it as proof that Berkeley's metaphysics did not work, because--" Ernest paused calmly for a moment.