"It is necessary for every American, with becoming energy to endeavor to stop the dissemination of principles evidently destructive of the cause for which they have bled. It must be the combined virtue of the rulers and of the people to do this, and to rescue and save their civil and religious rights from the outstretched arm of tyranny, which may appear under any mode or form of government."
Napoleon at the Battle of Austerlitz, by François Gérard 1805. The Battle of Austerlitz, also known as the Battle of the Three Emperors, was one of Napoleon's many victories, where the French Empire defeated the Third Coalition.
"A constitution defines and limits the powers of the government it creates. It therefore follows, as a natural and also a logical result, that the governmental exercise of any power not authorized by the constitution is an assumed power, and therefore illegal."