Doctrine that one cannot know the existence of anything beyond the phenomena of experience. It is popularly equated with religious skepticism, and especially with the rejection of traditional Christian beliefs under the impact of modern scientific thought. T.H. Huxley popularized philosophical agnosticism after coining the term agnostic (as opposed to gnostic) in 1869, to designate one who repudiated traditional Judeo-Christian theism but was not a doctrinaire atheist (see atheism). Agnosticism may mean no more than the suspension of judgment on ultimate questions because of insufficient evidence, or it may constitute a rejection of traditional Christian tenets.
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Agnosticism (Greek: α- a-, without + γνώσις gnōsis, knowledge; after Gnosticism) is the philosophical view that the truth value of certain claims — particularly metaphysical claims regarding theology, afterlife or the existence of God , gods, deities, ghosts or even ultimate reality — is unknown or, depending on the form of agnosticism, inherently impossible to prove or disprove.
Demographic research services normally list agnostics in the same category as atheists and non-religious people, using 'agnostic' in the sense of 'noncommittal'. However, this can be misleading given the existence of agnostic theists, who identify themselves as both agnostics in the original sense and followers of a particular religion.
Philosophers and thinkers who have written about agnosticism include Thomas Henry Huxley, Robert G. Ingersoll, and Bertrand Russell. Religious scholars who wrote about agnosticism are Peter Kreeft, Blaise Pascal and Joseph Ratzinger, later elected as Pope Benedict XVI.
Early Christian church leaders used the Greek word gnosis (knowledge) to describe "spiritual knowledge." Agnosticism is not to be confused with religious views opposing the doctrine of gnosis and Gnosticism—these are religious concepts that are not generally related to agnosticism. Huxley used the term in a broad sense.
In recent years, use of the word to mean "not knowable" is apparent in scientific literature in psychology and neuroscience, and with a meaning close to "independent", in technical and marketing literature, e.g. "platform agnostic" or "hardware agnostic".
Many mainstream believers in the West embrace an agnostic stance. As noted below, for instance, Roman Catholic dogma about the nature of God contains many strictures of agnosticism. An agnostic who believes in God despairs of ever fully comprehending what it is in which he believes. But some believing agnostics assert that very absurdity strengthens their belief rather than weakens it.
The Catholic Church sees merit in examining what it calls Partial Agnosticism, specifically those systems that "do not aim at constructing a complete philosophy of the Unknowable, but at excluding special kinds of truth, notably religious, from the domain of knowledge. However, the Church is historically opposed to a full denial of the ability of human reason to know God. The Council of the Vatican, relying on biblical scripture, declares that "God, the beginning and end of all, can, by the natural light of human reason, be known with certainty from the works of creation" (Const. De Fide, II, De Rev.)
Among the most famous agnostics (in the original sense) have been Thomas Henry Huxley, Robert G. Ingersoll and Bertrand Russell.
Agnostic views are as old as philosophical skepticism, but the terms agnostic and agnosticism were created by Huxley to sum up his thoughts on contemporary developments of metaphysics about the "unconditioned" (Hamilton) and the "unknowable" (Herbert Spencer). It is important, therefore, to discover Huxley's own views on the matter. Though Huxley began to use the term "agnostic" in 1869, his opinions had taken shape some time before that date. In a letter of September 23, 1860, to Charles Kingsley, Huxley discussed his views extensively:
And again, to the same correspondent, May 6, 1863:
Of the origin of the name agnostic to describe this attitude, Huxley gave the following account:
Huxley's agnosticism is believed to be a natural consequence of the intellectual and philosophical conditions of the 1860s, when clerical intolerance was trying to suppress scientific discoveries which appeared to clash with a literal reading of the Book of Genesis and other established Jewish and Christian doctrines. Agnosticism should not, however, be confused with natural theology, deism, pantheism, or other science positive forms of theism.
By way of clarification, Huxley states, "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" (Huxley, Agnosticism, 1889). While A. W. Momerie has noted that this is nothing but a definition of honesty, Huxley's usual definition goes beyond mere honesty to insist that these metaphysical issues are fundamentally unknowable.
Robert G. Ingersoll, an Illinois lawyer and politician who evolved into a well-known and sought-after orator in 19th century America, has been referred to as the "Great Agnostic."
In an 1896 lecture titled Why I Am An Agnostic, Ingersoll related why he was an agnostic:
In the conclusion of the speech he simply sums up the agnostic position as:
Bertrand Russell's pamphlet, Why I Am Not a Christian, based on a speech delivered in 1927 and later included in a book of the same title, is considered a classic statement of agnosticism. The essay briefly lays out Russell’s objections to some of the arguments for the existence of God before discussing his moral objections to Christian teachings. He then calls upon his readers to "stand on their own two feet and look fair and square at the world," with a "fearless attitude and a free intelligence."
In 1939, Russell gave a lecture on The existence and nature of God, in which he characterized himself as an agnostic. He said:
However, later in the same lecture, discussing modern non-anthropomorphic concepts of God, Russell states:
In Russell's 1947 pamphlet, Am I An Atheist Or An Agnostic? (subtitled A Plea For Tolerance In The Face Of New Dogmas), he ruminates on the problem of what to call himself:
In his 1953 essay, What Is An Agnostic? Russell states:
However, later in the essay, Russell says:
Religious scholars, whether Jewish, Muslim or Christian, affirm the possibility of knowledge, even of metaphysical realities such as God and the soul, because human intelligence ("intus", within and "legere", to read) has the power to reach the essence and existence of things since it has a non-material, spiritual element. They affirm that “not being able to see or hold some specific thing does not necessarily negate its existence,” as in the case of gravity, entropy, mental telepathy, or reason and thought.
According to these scholars, agnosticism is impossible in actual practice, since one either lives as if God did not exist (etsi Deus non daretur), or lives as if God did exist (etsi Deus daretur). These scholars believe that each day in a person’s life is an unavoidable step towards death, and thus not to decide for or against God, the all-encompassing foundation, purpose, meaning of life, is to decide in favor of atheism. Even if there were truly no evidence for God, Christian philosopher Blaise Pascal offered to agnostics what is known as Pascal’s Wager: the infinite expected value of acknowledging God is always greater than the expected value of not acknowledging his existence, and thus it is a safer “bet” to choose God.
These religious scholars argue that God has placed in his creation much evidence of his existence, and continues to personally speak to humans. Peter Kreeft and Ronald Tacelli write about a strong, cumulative case with their 20 rational arguments for God’s existence. And, these scholars state, when agnostics demand from God that he proves his existence through laboratory testing, they are asking God, a superior being, to become man’s servant.
According to Joseph Ratzinger later elected as Pope Benedict XVI, agnosticism, more specifically strong agnosticism, is a self-limitation of reason that contradicts itself when it acclaims the power of science to know the truth. When reason imposes limits on itself on matters of religion and ethics, this leads to dangerous pathologies of religion and pathologies of science, such as destruction of humans and ecological disasters. "Agnosticism," said Ratzinger, "is always the fruit of a refusal of that knowledge which is in fact offered to man... The knowledge of God has always existed." Agnosticism, stated Ratzinger, is a choice of comfort, pride, dominion, and utility over truth, and is opposed by the following attitudes: the keenest self-criticism, humble listening to the whole of existence, the persistent patience and self-correction of the scientific method, and a readiness to be purified by the truth.