If they cut off both hands, I will compose music anyway holding the pen in my teeth. - Dmitri Shostakovich

A great piece of music is beautiful regardless of how it is performed. Any prelude or fugue of Bach can be played at any tempo, with or without rhythmic nuances, and it will still be great music. That's how music should be written, so that no-one, no matter how philistine, can ruin it.

What do you think of Puccini?
[ Britten: "I think his operas are dreadful." ]
No, Ben, you are wrong. He wrote marvellous operas, but dreadful music.

When a man is in despair, it means that he still believes in something.