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 minister asks, 'What right have you to hope? It is sacrilegious to you.' But, whether the clergy like it or not, I shall always express my real opinion, and shall always be glad to say to those who mourn: 'There is in death, as I believe, nothing worse than sleep. Hope for as much better as you can.'
Robert Green IngersollAt the bottom of religious persecution is the doctrine of self-defence; that is to say, the defence of the soul. If the founder of Christianity had plainly said: 'It is not necessary to believe in order to be saved; it is only necessary to do, and he who really loves his fellow-men, who is kind, honest, just and charitable, is to be forever blest' - if he had only said that, there would probably have been but little persecution.
Robert Green Ingersoll