Mr. Dubois, concluding a high school lecture regarding the breakup of the North American republic:

And that was the soft spot which destroyed what was in many ways an admirable culture. The junior hoodlums who roamed their streets were symptoms of a greater sickness; their citizens (all of them counted as such) glorified their mythology of 'rights'...and lost track of their duties. No nation, so constituted, can endure.

Starship Troopers by Robert A. Heinlein.