When he was still a young man, Beethoven decided to compose a few improvisations on a music by Pergolesi. He devoted months to this task and finally had the courage to publish it.
A critic wrote a full page review in a German newspaper in which he launched a ferocious attack on the music. Beethoven, however, was quite unshaken by his comments.
When his friends pressed him to respond to the critic, he merely said: "All I need to do is to carry on with my work. If the music I compose is as good as I think it is, then it will survive that journalist. If it has the depth I hope it has, it will survive the newspaper too. Should that ferocious attack on what I do ever be remembered in the future, it will only serve as an example of the imbecility of critics."
Beethoven was absolutely right.
Over a hundred years later, that same review was mentioned in a radio programme in São Paulo.
" How much easier it is to be critical than to be correct."
~ Benjamin Disraeli (1804 - 1881), speech, January 24, 1860