Every church pretends to have found the exact truth. This is the end of progress. Why pursue that which you have? Why investigate when you know? Every creed is a rock in running water: humanity sweeps by it. Every creed cries to the universe, "Halt!" A creed is the ignorant Past bullying the enlightened Present. The ignorant are not satisfied with what can be demonstrated. Science is too slow for them, and so they invent creeds. They demand completeness. A sublime segment, a grand fragment, are of no value to them. They demand the complete circle... the entire structure.
Robert Green IngersollNothing could be more dangerous to the existence of this Republic than to introduce religion into politics
Robert Green IngersollSmall people delight in what they call consistency-that is, it gives them immense pleasure to say that they believe now exactly as they did ten years ago. This simply amounts to a certificate that they have not grown-that they have not developed-and that they know just as little now as they ever did. The highest possible conception of consistency is to be true to the knowledge of today, without the slightest reference to what your opinion was years ago.
Robert Green Ingersoll