Why canโt I drink the potion instead?โ asked Harry desperately. โBecause I am much older, much cleverer, and much less valuable,โ said Dumbledore.
J. K. RowlingDo you mean ter tell me," he growled at the Dursleys, "that this boyโthis boy!โknows nothin' abou'โabout ANYTHING?" Harry thought this was going a bit far. He had been to school, after all, and his marks weren't bad. I know some things," he said. "I can, you know, do math and stuff.
J. K. Rowling