"Analysis of rebellion leads at least to the suspicion that, contrary to the postulates of contemporary thought, a human nature does exist, as the Greeks believed. Why rebel if there is nothing permanent in oneself worth preserving? … Rebellion, though apparently negative, since it creates nothing, is profoundly positive in that it reveals the part of man which must always be defended."
January 1, 1970
https://en.wikiquote.org/wiki/Rebellion