Duty is a debt you owe to yourself to fulfill obligations you have assumed voluntarily.
Robert A. HeinleinIts very variety, subtlety, and utterly irrational, idiomatic complexity makes it possible to say things in English which simply cannot be said in any other language.
Robert A. HeinleinAlways listen to experts. They'll tell you what can't be done, and why. Then do it.
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