An armed society is a polite society. Manners are good when one may have to back up his acts with his life.
Robert Anson Heinlein (July 7, 1907 – May 8, 1988) was an American science-fiction writer. Often called the "dean of science fiction writers", his controversial works continue to have an influential effect on the genre, and on modern culture more generally.
Enjoy the best Robert A. Heinlein picture quotes.
Read more about Robert A. Heinlein on Wikipedia.