Full Idea
As long as the world has existed, no authority has ever willingly permitted itself to become the object of critique.
Gist of Idea
No authority ever willingly accepts criticism
Source
Friedrich Nietzsche (Dawn (Daybreak) [1881], Pref 3)
Book Reference
Nietzsche,Friedrich: 'Dawn (Daybreak) (v 5)', ed/tr. Smith, Brittain [Stanford 2011], p.3
A Reaction
A political remark, but it leads into speaking of conventional morality as just such an authority. Nowadays teachers have feedback forms, and leaders have to endure party conferences. But on the whole it remains true.