I was wondering what the context of that quote was, but I found this:

https://en.wikiquote.org/wiki/Louis_Veuillot

> Misattributed to Veuillot in Children of Dune (1976) by Frank Herbert: "When I am weaker than you, I ask you for freedom because that is according to your principles; when I am stronger than you, I take away your freedom because that is according to my principles."