"But all these mitigating techniques have severe drawbacks, and as a result there are old ritual magicians, and there are bold ritual magicians, but there are no old, bold magicians. They don’t survive, and they tend to have unique skill sets, thereby defeating the first principle of bureaucracy: that nobody is indispensable."
January 1, 1970
https://en.wikiquote.org/wiki/Charles_Stross