A competent and self-confident person is incapable of jealousy in anything. Jealousy is invariably a symptom of neurotic insecurity. Robert Anson Heinlein More Quotes by Robert Anson Heinlein More Quotes From Robert Anson Heinlein Self awareness is NOT just a bunch of amino acids bumping together. Robert Anson Heinlein Everything is theoretically impossible, until it is done. One could write a history of science in reverse by assembling the solemn pronouncements of highest authority about what could not be done and could never happen. Robert Anson Heinlein A generation which ignores history has no past and no future. Robert Anson Heinlein Love is a condition in which the happiness of another person is essential to your own. Robert Anson Heinlein One man's religion is another man's belly laugh. Robert Anson Heinlein The reasonable man adapts himself to the world the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man. Robert Anson Heinlein The stars incline, but do not impel. Robert Anson Heinlein To be matter of fact about the world is to blunder into fantasy -- and dull fantasy at that, as the real world is strange and wonderful. Robert Anson Heinlein Your enemy is never a villain in his own eyes. Keep this in mind, it may offer a way to make him your friend. If not, you can kill him without hate--and quickly. Robert Anson Heinlein
