The basic of all morality is duty, a concept with the same relation to group that self-interest has to individual.
Robert A. HeinleinAnyone who clings to the historically untrue-and thoroughly immoral-doctrine that, 'violence never settles anything' I would advise to conjure the ghosts of Napoleon Bonaparte and the Duke of Wellington and let them debate it. The ghost of Hitler could referee, and the jury might well be the Dodo, the Great Auk and the Passenger Pigeon. Violence, naked force, has settled more issues in history than has any other factor, and the contrary opinion is wishful thinking at its worst. Breeds that forget this basic truth have always paid for it with their lives and freedom.
Robert A. HeinleinA handy short definition of almost all science fiction might read: realistic speculation about possible future events, based solidly on adequate knowledge of the real world, past and present, and on a thorough understanding of the nature and significance of the scientific method.
Robert A. HeinleinYou were probably educated in the conventional economic theories of your period which were magnificent and most ingenious, but--if you will pardon my saying so--all wrong.
Robert A. HeinleinThe country and culture commonly known as "America" had had a badly split personality all through its history. Its overt laws were almost always puritanical for a people whose covert behavior tended to be Rabelaisian; its major religions were all Apollonian in varying degrees---its religious revivals were often hysterical in a fashion almost Dionysian.
Robert A. Heinlein