"“He posed me a question which I must answer correctly—else he will not co-operate.” “Huh? What was the question? “I’ll ask you. Martha, what is the meaning of life?” “What! Why, what a stupid question!” “He did not ask it stupidly.” “It’s a psychopathic question, unlimited, unanswerable, and, in all probability, sense free.”"
January 1, 1970
https://en.wikiquote.org/wiki/Robert_A._Heinlein