# Explanation Is Meaningless > [When asked why are numbers beautiful?] > > It's like asking why is Ludwig van Beethoven's Ninth Symphony > beautiful. If you don't see why, someone can't tell you. I know > numbers are beautiful. If they aren't beautiful, nothing is. > > Paul Erdos In the end, the only knowledge that matters is tacit knowledge. For people who have tacit knowledge, no explanation is needed. For people who don't have tacit knowledge, no explanation is possible. Maybe experience is really the only thing that matters. But I have to explain because otherwise I can't communicate anything. Maybe it is a result of the Tower of Babel. Only the people who already understand it will understand. Vanity to the air. However I try, try again. Because I believe that language is not only for logics.