Les êtres particuliers intelligents peuvent avoir des lois qu'ils ont faites; mais ils en ont aussi qu'ils n'ont pas faites. - Montesquieu

"The political liberty, of the subject, (separation of powers), is a tranquility of mind arising from the opinion each person has of [their] safety. In order to have this liberty. It is requisite the government be so constituted as one [person] need not to be afraid of another."

Baron de Montesquieu,
Spirit of laws
1748

I write to thee on this subject, [friend], because I am angry at a book which I have just left, which is so large, that it seems to contain universal science, but it hath almost split my head, without teaching me anything.

Translation: If I knew of something that could serve my nation but would ruin another, I would not propose it to my prince, for I am first a man and only then a Frenchman, because I am necessarily a man, and only accidentally am I French.