"Like it or not, the [Holocaust] must and will dominate future events. Its centrality in the creative endeavors of our contemporaries remains undisputed. Philosophers and social scientists, psychologists and moralists, theologians and artists: all have termed it a watershed in the annals of mankind. What was comprehensible before Treblinka is comprehensible no longer. After Treblinka, man's ability to cope with his condition was shattered; he was pushed to his limits and beyond. Whatever has happened since must therefore be judged in the light of Treblinka. Forgetfulness is no solution."
January 1, 1970
https://en.wikiquote.org/wiki/The_Holocaust