De gratia speciali certa scientia et mero motu, talis clausula non valet in his in quibus praesumitur principem esse ignorantem

Dictionary: 
Ballentine's Law Dictionary

Of special favor, certain knowledge and mere motion, is worthless in those matters in which the prince is presumed to be ignorant.

Author: 
James A. Ballentine
Publisher: 
The Bobbs-Merrill Company
Year Published: 
1916
Genre: 
Law Dictionary