Christopher Hitchens - The Portable Atheist - Essential Readings for the Nonbeliever

It was amazing to find him so keen in such a state. I must add one other circumstance, which is material, as it shows that he perhaps was not without some hope of a future state, and that his spirits were supported by a consciousness (or at least a notion) that his conduct had been virtuous. He said, “If there were a future state, Mr. Boswell, I think I could give as good an account of my life as most people.”

It isn’t so long since a test of Anglican orthodoxy was applied to anyone seeking to study or teach at Oxford and Cambridge universities. One of the most celebrated victims of this theocratic policy was Shelley (1792–1811) who was expelled from University College, Oxford, for writing a pamphlet entitled The Necessity of Atheism . He and his poetry were much influenced by the climate of skepticism engendered by the French and Scottish enlightenments, and he himself was to marry the daughter of the freethinker William Godwin. In this extract from A Refutation of Deism , Shelley sets about the propaganda of the creationists.

Design must be proved before a designer can be inferred. The matter in controversy is the existence of design in the Universe, and it is not permitted to assume the contested premises and thence infer the matter in dispute. Insidiously to employ the words contrivance, design, and adaptation before these circumstances are made apparent in the Universe, thence justly inferring a contriver is a popular sophism against which it behooves us to be watchful.

To assert that motion is an attribute of mind, that matter is inert, that every combination is the result of intelligence is also an assumption of the matter in dispute.

Why do we admit design in any machine of human contrivance? Simply, because innumerable instances of machines having been contrived by human art are present to our mind, because we are acquainted with persons who could construct such machines; but if, having no previous knowledge of any artificial contrivance, we had accidentally found a watch upon the ground, we should have been justified in concluding that it was a thing of Nature, that it was a combination of matter with whose cause we were unacquainted, and that any attempt to account for the origin of its existence would be equally presumptuous and unsatisfactory.

The analogy, which you attempt to establish between the contrivances of human art and the various existences of the Universe, is inadmissible. We attribute these effects to human intelligence, because we know before hand that human intelligence is capable of producing them. Take away this knowledge, and the grounds of our reasoning will be destroyed. Our entire ignorance, therefore, of the Divine Nature leaves this analogy defective in its most essential point of comparison.

What consideration remains to be urged in support of the creation of the Universe by a supreme Being? Its admirable fitness for the production of certain effects, that wonderful consent of all its parts, that universal harmony by whose changeless laws innumerable systems of worlds perform their stated revolutions, and the blood is driven through the veins of the minutest animalcule that sports in the corruption of an insect’s lymph: on this account did the Universe require an intelligent Creator, because it exists producing invariable effects, and inasmuch as it is admirably organized for the production of these effects, so the more did it require a creative intelligence.

Thus have we arrived at the substance of your assertion, “That whatever exists, producing certain effects, stands in need of a Creator, and the more conspicuous is its fitness for the production of these effects, the more certain will be our conclusion that it would not have existed from eternity, but must have derived its origin from an intelligent creator.”

In what respect then do these arguments apply to the Universe, and not apply to God? From the fitness of the Universe to its end you infer the necessity of an intelligent Creator. But if the fitness of the Universe, to produce certain effects, be thus conspicuous and evident, how much more exquisite fitness to his end must exist in the Author of this Universe? If we find great difficulty from its admirable arrangement, in conceiving that the Universe has existed from all eternity, and to resolve this difficulty suppose a Creat r, how much more clearly must we perceive the necessity of this very Creator’s creation whose perfections comprehend an arrangement far more accurate and just.

The belief of an infinity of creative and created Gods, each more eminently requiring an intelligent author of his being than the foregoing, is a direct consequence of the premises, which you have stated. The assumption that the Universe is a design, leads to a conclusion that there are infinity of creative and created Gods, which is absurd. It is impossible indeed to prescribe limits to learned error, when Philosophy relinquishes experience and feeling for speculation.

Until it is clearly proved that the Universe was created, we may reasonably suppose that it has endured from all eternity. In a case where two propositions are diametrically opposite, the mind believes that which is less incomprehensible: it is easier to suppose that the Universe has existed from all eternity, than to conceive an eternal being capable of creating it. If the mind sinks beneath the weight of one, is it an alleviation to encrease the intolerability of the burthen?

A man knows, not only that he now is, but also that there was a time when he did not exist; consequently there must have been a cause. But we can only infer, from effects, causes exactly adequate to those effects. There certainly is a generative power which is effected by particular instruments; we cannot prove that it is inherent in these instruments, nor is the contrary hypothesis capable of demonstration. We admit that the generative power is incomprehensible, but to suppose that the same effects are produced by an eternal Omnipotent and Omniscient Being, leaves the cause in the same obscurity, but renders it more incomprehensible.

We can only infer from effects causes exactly adequate to those effects. An infinite number of effects demand an infinite number of causes, nor is the philosopher justified in supposing a greater connection or unity in the latter, than is perceptible in the former. The same energy cannot be at once the cause of the serpent and the sheep; of the blight by which the harvest is destroyed, and the sunshine by which it is matured; of the ferocious propensities by which man becomes a victim to himself, and of the accurate judgment by which his institutions are improved. The spirit of our accurate and exact philosophy is outraged by conclusions that contradict each other so glaringly.

The greatest, equally with the smallest motions of the Universe, are subjected to the rigid necessity of inevitable laws. These laws are the unknown causes of the known effects perceivable in the Universe. Their effects are the boundaries of our knowledge, their names the expressions of our ignorance. To suppose some existence beyond, or above them, is to invent a second and superfluous hypothesis to account for what has already been accounted for by the laws of motion and the properties of matter. I admit that the nature of these laws is incomprehensible, but the hypothesis of a Deity adds a gratuitous difficulty, which so far from alleviating those that it is adduced to explain, requires new hypotheses for the elucidation of its own inherent contradictions.

The laws of attraction and repulsion, desire and aversion, suffice to account for every phenomenon of the moral and physical world. A precise knowledge of the properties of any object is alone requisite to determine its manner of action. Let the mathematician be acquainted with the weight and volume of a cannonball, together with the degree of velocity and inclination with which it is impelled, and he will accurately delineate the course it must describe, and determine the force with which it will strike an object at a given distance. Let the influencing motive, present to the mind of any person be given, and the knowledge of his consequent conduct will result. Let the bulk and velocity of a comet be discovered, and the a tronomer, by the accurate estimation of the equal and contrary actions of the centripetal and centrifugal forces, will justly predict the period of its return.