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.
Robert Green IngersollThe man who invented the telescope found out more about heaven than the closed eyes of prayer ever discovered.
Robert Green IngersollI have always noticed that the people who have the smallest souls make the most fuss about getting them saved.
Robert Green IngersollIf the world ever advances beyond what it is today, it must be led by men who express their real opinions.
Robert Green IngersollI am the inferior of any man whose rights I trample under foot. Men are not superior by reason of accidents of race or color. They are superior who have the best heart-the best brain.
Robert Green IngersollWhere is the soul? . . . I refuse to believe anything of that kind without proof. The idea that, as soon as a man's breath leaves his body, the soul flops out like a chicken's head and flies off into space to find a lodgment where there [are] harps and haloes. Too much for me.
Robert Green Ingersoll