If the people of Europe had known as much of astronomy and geology when the bible was introduced among them, as they do now, there never could have been one believer in the doctrine of inspiration. If the writers of the various parts of the bible had known as much about the sciences as is now known by every intelligent man, the book never could have been written. It was produced by ignorance, and has been believed and defended by its author. It has lost power in the proportion that man has gained knowledge. A few years ago, this book was appealed to in the settlement of all scientific questions; but now, even the clergy confess that in such matters, it has ceased to speak with the voice of authority. For the establishment of facts, the word of man is now considered far better than the word of God. In the world of science, Jehovah was superseded by Copernicus, Galileo, and Kepler. All that God told Moses, admitting the entire account to be true, is dust and ashes compared to the discoveries of Descartes, Laplace, and Humboldt. In matters of fact, the bible has ceased to be regarded as a standard. Science has succeeded in breaking the chains of theology. A few years ago, Science endeavored to show that it was not inconsistent with the bible. The tables have been turned, and now, Religion is endeavoring to prove that the bible is not inconsistent with Science. The standard has been changed.

~ Robert G. Ingersoll

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.

~ Thomas Henry Huxley

In conscious life, we achieve some sense of ourselves as reasonably unified, coherent selves, and without this action would be impossible. But all this is merely at the ‘imaginary’ level of the ego, which is no more than the tip of the iceberg of the human subject known to psychoanalysis. The ego is function or effect of a subject which is always dispersed, never identical with itself, strung out along the chains of the discourses which constitute it. There is a radical split between these two levels of being — a gap most dramatically exemplified by the act of referring to myself in a sentence. When I say ‘Tomorrow I will mow the lawn,’ the ‘I’ which I pronounce is an immediately intelligible, fairly stable point of reference which belies the murky depths of the ‘I’ which does the pronouncing. The former ‘I’ is known to linguistic theory as the ‘subject of the enunciation’, the topic designated by my sentence; the latter ‘I’, the one who speaks the sentence, is the ‘subject of the enunciating’, the subject of the actual act of speaking. In the process of speaking and writing, these two ‘I’s’ seem to achieve a rough sort of unity; but this unity is of an imaginary kind. The ‘subject of the enunciating’, the actual speaking, writing human person, can never represent himself or herself fully in what is said: there is no sign which will, so to speak, sum up my entire being. I can only designate myself in language by a convenient pronoun. The pronoun ‘I’ stands in for the ever-elusive subject, which will always slip through the nets of any particular piece of language; and this is equivalent to saying that I cannot ‘mean’ and ‘be’ simultaneously. To make this point, Lacan boldly rewrites Descartes’s ‘I think, therefore I am’ as: ‘I am not where I think, and I think where I am not.

~ Terry Eagleton