Full Idea
In every government there are three sorts of powers: the legislative; the executivem in regard to those matters determined by the laws of nations; and the executive, in regard to those matters determined by civil law.
Gist of Idea
A government has a legislature, an international executive, and a domestic executive
Source
Baron de Montesquieu (The Spirit of the Laws (rev. 1757) [1748], 11.06)
Book Reference
Montesquieu,Baron de: 'Selected Political Writings', ed/tr. Richter,Melvin [Hackett 1990], p.182