All the so-called false religions were substantiated by miracles, by signs and wonders, by prophets and martyrs, precisely as our own. Our witnesses are no better than theirs, and our success is no greater. If their miracles were false, ours cannot be true. Nature was the same in India and in Palestine.

One of the corner-stones of Christianity is the miracle of inspiration, and this same miracle lies at the foundation of all religions. How can the fact of inspiration be established? How could even the inspired man know that he was inspired? If he was influenced to write, and did write, and did express thoughts and facts that to him were absolutely new, on subjects about which he had previously known nothing, how could he know that he had been influenced by an infinite being? And if he could know, how could he convince others?

The Works of Robert G. Ingersoll, Vol. 11 (of 12) — Part 178

What is meant by inspiration? Did the one inspired set down only the thoughts of a supernatural being? Was he simply an instrument, or did his personality color the message received and given? Did he mix his ignorance with the divine information, his prejudices and hatreds with the love and justice of the Deity? If God told him not to eat the flesh of any beast that dieth of itself, did the same infinite being also tell him to sell this meat to the stranger within his gates?

The Works of Robert G. Ingersoll, Vol. 11 (of 12) — Part 178

A man says that he is inspired--that God appeared to him in a dream, and told him certain things. Now, the things said to have been communicated may have been good and wise; but will the fact that the communication is good or wise establish the inspiration? If, on the other hand, the communication is absurd or wicked, will that conclusively show that the man was not inspired? Must we judge from the communication? In other words, is our reason to be the final standard?

The Works of Robert G. Ingersoll, Vol. 11 (of 12) — Part 178

How could the inspired man know that the communication was received from God? If God in reality should appear to a human being, how could this human being know who had appeared? By what standard would he judge? Upon this question man has no experience; he is not familiar enough with the supernatural to know gods even if they exist. Although thousands have pretended to receive messages, there has been no message in which there was, or is, anything above the invention of man. There are just as wonderful things in the uninspired as in the inspired books, and the prophecies of the heathen have been fulfilled equally with those of the Judean prophets. If, then, even the inspired man cannot certainly know that he is inspired, how is it possible for him to demonstrate his inspiration to others? The last solution of this question is that inspiration is a miracle about which only the inspired can have the least knowledge, or the least evidence, and this knowledge and this evidence not of a character to absolutely convince even the inspired.