Every cradle asks us, "Whence?" and every coffin, "Whither?" The poor barbarian, weeping above his dead, can answer these questions as intelligently … - Robert Green Ingersoll

Science has nothing in common with religion. Facts and miracles never did, and never will agree. They are not in the least related. They are deadly foes. What has religion to do with facts? Nothing. Can there be Methodist mathematics, Catholic astronomy, Presbyterian geology, Baptist biology, or Episcopal botany?

What then is, or can be called, a moral guide? The shortest possible answer is one word: Intelligence. We want the experience of mankind, the true history of the race. We want the history of intellectual development, of the growth of the ethical, of the idea of justice, of conscience, of charity, of self-denial. We want to know the paths and roads that have been traveled by the human mind. These facts in general, these histories in outline, the results reached, the conclusions formed, the principles evolved, taken together, would form the best conceivable moral guide. We cannot depend on what are called “inspired books,” or the religions of the world. These religions are based on the supernatural, and according to them we are under obligation to worship and obey some supernatural being, or beings. All these religions are inconsistent with intellectual liberty. They are the enemies of thought, of investigation, of mental honesty. They destroy the manliness of man. They promise eternal rewards for belief, for credulity, for what they call faith. This is not only absurd, but it is immoral.

Our fathers founded the first secular government that was ever founded in this world. Recollect that. The first secular government; the first government that said every church has exactly the same rights, and no more; every religion has the same rights, and no more. In other words, our fathers were the first men who had the sense, who had the genius, to know that no church should be allowed to have a sword; that it should be allowed only to exert its moral influence.