You look at Beethoven's sketch book and he's working things...

You look at Beethoven's sketch book and he's working things out, trying this, trying that. Mozart didn't do that. He simply wrote it out. Beethoven did not have the same abilities that Mozart had. And you know how much Beethoven means to us. When you listen to the Ninth Symphony, it's one of the greatest accomplishments of all mankind, artistically certainly. But he shuddered when he thought of the shadow Mozart cast over music and he felt pressure, just like Brahms felt the pressure Beethoven's Ninth put on symphonic writing.