You cannot show real respect to your parents by perpetuating their errors.... Do you consider that the inventor of a steel plow cast a slur upon his father who scratched the ground with a wooden one? I do not consider that an invention by the son is a slander upon the father; I regard each invention simply as an improvement; and every father should be exceedingly proud of an ingenious son. If Mr. Talmage has a son, it will be impossible for him to honor his father except by differing with him.
Joseph Lewis, Robert Green Ingersoll (1957). “Ingersoll the Magnificent: To which Has Been Added a Special Arrangement of Some Gems from Ingersoll for Inspiration, Wisdom, and Courage”