Only the passive, only those who accept their lot without active retaliation, are "flawless." Most of us are in that category.
But there are among us today, as there always have been, those who act against the scheme of things that degrades them, and in the process of action everything we have accepted out of fear of insensitivity or ignorance is shaken before us and examined, and from this total onslaught by an individual against the seemingly stable cosmos surrounding us — from this total examination of the "unchangeable" environment — comes the terror and the fear that is classically associated with tragedy. More important, from this total questioning of what has previously been unquestioned, we learn.

Tragedy and the Common Man (1949)