A locomotive is moving. Someone asks: "What moves it?" A peasant says the devil moves it. Another man says the locomotive moves because its wheels go round. A third asserts that the cause of its movement lies in the smoke which the wind carries away.

"Now then, go on, go on!" incited the officer, bending forward and trying not to lose a word of the speech which was incomprehensible to him. "More, please: more! What`s he saying?"