Perhaps you have blood in your veins, perhaps celestial ichor, or perhaps you circulate nothing more gross than respirable air; but of one thing I am inexpugnably assured:--that you are no human being.
No, boy'-- shaking his stick at him--'you are not a human being.

Write, write it in your memory--"I am not a human being--I have no pretension to be a human being--I am a dive, a dream, an angel, an acrostic, an illusion--what you please, but not a human being." And so accept my humble salutations and farewell!' And with that the Doctor made off along the street in some emotion, and the boy stood, mentally gaping, where he left him..