Who am I to tamper with a masterpiece?

On refusing to make alterations to one of his plays: Who am I to tamper with a masterpiece?

They didn't even try to tamper with it,

It was a masterpiece. He was great.

Every impulse we strangle will only poison us.

The mark of all good art is not that the thing done is done exactly or finely, for machinery may do as much, but that it is worked out with the head and the workman's heart.