"I checked it very thoroughly," said the computer, "and that quite definitely is the answer. I think the problem, to be quite honest with you, is that you've never actually known what the question is." "But it was the Great Question! The Ultimate Question of Life, the Universe and Everything," howled Loonquawl. "Yes," said Deep Thought with the air of one who suffers fools gladly, "but what actually is it?" A slow stupefied silence crept over the men as they stared at the computer and then at each other. "Well, you know, it's just Everything ... Everything ..." offered Phouchg weakly. "Exactly!" said Deep Thought. "So once you know what the question actually is, you'll know what the answer means."
January 1, 1970
https://en.wikiquote.org/wiki/The_Hitchhiker's_Guide_to_the_Galaxy