A competent and self-confident person is incapable of jealousy in anything. Jealousy is invariably a symptom of neurotic insecurity.
About This Quote
About Robert A. Heinlein
Robert A. Heinlein was a 20th-century American author and engineer. Robert Anson Heinlein was an American science fiction author, engineer, and naval officer. Sometimes called the "dean of science fiction writers", he was among the first to emphasize scientific accuracy in his fiction and was thus a pioneer of the subgenre of hard science fiction. Read more on Wikipedia →