Deism: Deism is the recognition of a universal creative force greater than that demonstrated by mankind, supported by personal observation of laws and designs in nature and the universe, perpetuated and validated by the innate ability of human reason coupled with the rejection of claims made by individuals and organized religions of having received special divine revelation.
Thomas Paine may be considered to be the founder of Deism. He became notorious because of "The Age of Reason" (1793–94), his book advocating Deism, promoting reason and freethinking, and arguing against institutionalized religion and Christian doctrines.
His book is available at:
Thomas Paine states: "There is a happiness in Deism, when rightly understood, that is not to be found in any other system of religion. All other systems have something in them that either shock our reason, or are repugnant to it, and man, if he thinks at all, must stifle his reason in order to force himself to believe them.
But in Deism our reason and our belief become happily united. The wonderful structure of the universe, and everything we behold in the system of the creation, prove to us, far better than books can do, the existence of a God, and at the same time proclaim His attributes."
He says about revelation in the “Age of Reason, Part II, Section 20 – Conclusion”:
“Revelation then, so far as the term has relation between God and man, can only be applied to something which God reveals of his will to man; but though the power of the Almighty to make such a communication is necessarily admitted, because to that power all things are possible, yet, the thing so revealed (if any thing ever was revealed, and which, by the bye, it is impossible to prove) is revelation to the person only to whom it is made. His account of it to another is not revelation; and whoever puts faith in that account, puts it in the man from whom the account comes; and that man may have been deceived, or may have dreamed it; or he may be an impostor and may lie. There is no possible criterion whereby to judge of the truth of what he tells; for even the morality of it would be no proof of revelation. In all such cases, the proper answer should be, "When it is revealed to me, I will believe it to be revelation; but it is not and cannot be incumbent upon me to believe it to be revelation before; neither is it proper that I should take the word of man as the word of God, and put man in the place of God." This is the manner in which I have spoken of revelation in the former part of The Age of Reason; and which, whilst it reverentially admits revelation as a possible thing, because, as before said, to the Almighty all things are possible, it prevents the imposition of one man upon another, and precludes the wicked use of pretended revelation.”