Thus, by science I mean, first of all, a worldview giving primacy to reason and observation and a methodology aimed at acquiring accurate knowledge of the natural and social world. This methodology is characterized, above all else, by the critical spirit: namely, the commitment to the incessant testing of assertions through observations and/or experiments — the more stringent the tests, the better — and to revising or discarding those theories that fail the test. One corollary of the critical spirit is fallibilism: namely, the understanding that all our empirical knowledge is tentative, incomplete and open to revision in the light of new evidence or cogent new arguments (though, of course, the most well-established aspects of scientific knowledge are unlikely to be discarded entirely).. . . I stress that my use of the term 'science' is not limited to the natural sciences, but includes investigations aimed at acquiring accurate knowledge of factual matters relating to any aspect of the world by using rational empirical methods analogous to those employed in the natural sciences. (Please note the limitation to questions of fact. I intentionally exclude from my purview questions of ethics, aesthetics, ultimate purpose, and so forth.) Thus, 'science' (as I use the term) is routinely practiced not only by physicists, chemists and biologists, but also by historians, detectives, plumbers and indeed all human beings in (some aspects of) our daily lives. (Of course, the fact that we all practice science from time to time does not mean that we all practice it equally well, or that we practice it equally well in all areas of our lives.)

The real difference is this: the Christian says that he has knowledge; the Agnostic admits that he has none; and yet the Christian accuses the Agnostic of arrogance, and asks him how he has the impudence to admit the limitations of his mind. To the Agnostic every fact is a torch, and by this light, and this light only, he walks.The Agnostic knows that the testimony of man is not sufficient to establish what is known as the miraculous. We would not believe to-day the testimony of millions to the effect that the dead had been raised. The church itself would be the first to attack such testimony. If we cannot believe those whom we know, why should we believe witnesses who have been dead thousands of years, and about whom we know nothing?The Agnostic takes the ground that human experience is the basis of morality. Consequently, it is of no importance who wrote the gospels, or who vouched or vouches for the genuineness of the miracles. In his scheme of life these things are utterly unimportant. He is satisfied that “the miraculous” is the impossible. He knows that the witnesses were wholly incapable of examining the questions involved, that credulity had possession of their minds, that 'the miraculous' was expected, that it was their daily food.

Agnosticism, in fact, is not a creed, but a method, the essence of which lies in the rigorous application of a single principle. That principle is of great antiquity; it is as old as Socrates; as old as the writer who said, 'Try all things, hold fast by that which is good'; it is the foundation of the Reformation, which simply illustrated the axiom that every man should be able to give a reason for the faith that is in him, it is the great principle of Descartes; it is the fundamental axiom of modern science. Positively the principle may be expressed: In matters of the intellect, follow your reason as far as it will take you, without regard to any other consideration. And negatively: In matters of the intellect, do not pretend that conclusions are certain which are not demonstrated or demonstrable. That I take to be the agnostic position, which if a man keep whole and undefiled, he shall not be ashamed to look the universe in the face, whatever the future may have in store for him.The results of the working out of the agnostic principle will vary according to individual knowledge and capacity, and according to the general condition of science. That which is unproved today may be proved, by the help of new discoveries, tomorrow. The only negative fixed points will be those negations which flow from the demonstrable limitation of our faculties. And the only obligation accepted is to have the mind always open to conviction.That it is wrong for a man to say he is certain of the objective truth of a proposition unless he can provide evidence which logically justifies that certainty. This is what agnosticism asserts and in my opinion, is all that is essential to agnosticism.

Most people are afflicted with an inability to say what they see or think. They say there’s nothing more difficult than to define a spiral in words; they claim it is necessary to use the unliterary hand, twirling it in a steadily upward direction, so that human eyes will perceive the abstract figure immanent in wire spring and a certain type of staircase. But if we remember that to say is to renew, we will have no trouble defining a spiral; it’s a circle that rises without ever closing. I realize that most people would never dare to define it this way, for they suppose that defining is to say what others want us to say rather than what’s required for the definition. I’ll say it more accurately: a spiral is a potential circle that winds round as it rises, without ever completing itself. But no, the definition is still abstract. I’ll resort to the concrete, and all will become clear: a spiral is a snake without a snake, vertically wound around nothing. All literature is an attempt to make life real. All of us know, even when we act on what we don’t know, life is absolutely unreal in its directly real form; the country, the city and our ideas are absolutely fictitious things, the offspring of our complex sensation of our own selves. Impressions are incommunicable unless we make them literary. Children are particularly literary, for they say what they feel not what someone has taught them to feel. Once I heard a child, who wished to say that he was on the verge of tears, say not ‘I feel like crying’, which is what an adult, i.e., an idiot, would say but rather, ’ I feel like tears.’ And this phrase -so literary it would seem affected in a well-known poet, if he could ever invent it - decisively refers to the warm presence of tears about to burst from eyelids that feel the liquid bitterness. ‘I feel like tears’! The small child aptly defined his spiral. To say! To know how to say! To know how to exist via the written voice and the intellectual image! This is all that matters in life; the rest is men and women, imagined loves and factitious vanities, the wiles of our digestion and forgetfulness, people squirming- like worms when a rock is lifted - under the huge abstract boulder of the meaningless blue sky.

FV: Annandale defines 'definition' as "an explanation of the signification of a term." Yet Oxford, on the other hand, defines it as "a statement of the precise meaning of a word." A small, perhaps negligible difference you might think. And neither, would you say, is necessarily more correct than the other? But now look up each of the words comprising each definition, and then the definitions of those definitions, and so on. Some still may only differ slightly, while others may differ quite a lot. Yet any discrepancy, large or small, only compounds that initial difference further and further, pushing each 'definition' farther apart. How similar are they then at the end of this process...assuming it ever would end? Could we possibly even be referring to the same word by this point? And we still haven't considered what Collins here...or Gage, or Funk and Wagnalls might have to say about it. Off on enough tangents and you're eventually led completely off track.ML: Or around in circles.FV: Precisely!ML: Oxford, though, is generally considered the authority, isn't it?FV: Well, it's certainly the biggest...the most complete. But then, that truly is your vicious circle - every word defined...every word in every definition defined...around and around in an infinite loop. Truly a book that never ends. A concise or abridged dictionary may, at least, have an out...ML: I wonder, then, what the smallest possible "complete dictionary" would be? Completely self-contained, that is, with every word in every definition accounted for. How many would that be, do you suppose? Or, I guess more importantly, which ones?FV: Well, that brings to mind another problem. You know that Russell riddle about naming numbers?