I suppose it's impossible to say that they will not invent anything else, because they might," said Zubria. "And, of course, if one thought of something that they might invent, one would have thought of it oneself, therefore one would be the inventor of what one thought of, and they would not be, which would make one an inventor, like them.
Philip   Dodd, Klubbe the Turkle and the Golden Star Coracle
humour, invention, logic, science-fiction