"For you are mad, my dear, in following this vocation. Even your goodness is a craziness. But then, all the very good are mad, just as the very wicked are mad. In fact, there is hardly any difference between the holy and the profane, save in their ideals and their deeds. Both are fanatics. Both are ruthless."
January 1, 1970
https://en.wikiquote.org/wiki/Tanith_Lee