Although born in a prosperous realm, we did not believe that its boundaries should limit our knowledge, and that the lore of the East should alone enlighten us.
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.
In bodies moved, the motion is received, increased, diminished, or lost, according to the relations of the quantity of matter and velocity; each diversity is uniformity, each change is constancy.
Law in general is human reason, inasmuch as it governs all the inhabitants of the earth: the political and civil laws of each nation ought to be only the particular cases in which human reason is applied.