Violence is the last refuge of the incompetent.' Character who said it in novel: Salvor Hardin - Isaac Asimov

What lasts in the reader's mind is not the phrase but the effect the phrase created: laughter, tears, pain, joy. If the phrase is not affecting the reader, what's it doing there? Make it do its job or cut it without mercy or remorse.

Rabbi Loew of sixteenth-century Prague. He is supposed to have formed an artificial human being — a robot — out of clay, just as God had formed Adam out of clay. A clay object, however much it might resemble a human being, is “an unformed substance” (the Hebrew word for it is “golem”), since it lacks the attributes of life. Rabbi Loew, however, gave his golem the attributes of life by making use of the sacred name of God, and set the robot to work protecting the lives of Jews against their persecutors.

And then — U. S. Robots has interstellar travel, and humanity has the opportunity for galactic empire.