It is much easier to be critical that to be correct.

You know who critics are?--the men who have failed in literature and art.

When we judge or criticize another person, it says nothing about that person; it merely says something about our own need to be critical.

¿No sabéis quiénes son los críticos? Aquellos que no han tenido éxito en la literatura y en el arte.

The most noble criticism is that in which the critic is not the antagonist so much as the rival of the author

Any fool can criticize, condemn and complain and most fools do.