怀疑主义

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怀疑主义 Skepticism

在哲學裡，怀疑主义指以下的一些見解，它提出:
1. 知識的有限程度。
2. 一種以系統化懷疑和不斷考驗，以達到求知的方法。
3. 武斷、相對或主觀的道德價值觀。
4. 知識反冒進及暫緩的判斷
5. 對人類行為的正面動機、或對人類經營過後而得出正面結果欠缺信心。亦即犬儒主義或悲觀主義(Keeton, 1962)

在經典哲學中，懷疑主義指Skeptikoi 的教導及行徑，他們稱他們沒有提出(見解), 只有(對見解)作出意見。"asserted nothing but only opined" (Liddell and Scott). 在這種理論下，哲學性懷疑主義或絕對懷疑主義，就是避免宣稱有最終真理的一種哲學角度。

在宗教裡，懷疑主義指"對宗教的基本原則(如永生，天命和啟示等)作出質疑"

目录 1 Philosophical skepticism 2 Empirical skepticism 2.1 Scientific skepticism 2.2 Religious skepticism 2.3 Activist skepticism 3 References 4 Further reading

[编辑] Philosophical skepticism

In philosophical skepticism, pyrrhonism is a position that refrains from making truth claims. A philosophical skeptic does not claim that truth is impossible (which would be a truth claim). The label is commonly used to describe other philosophies which appear similar to philosophical skepticism, such as "academic" skepticism, an ancient variant of Platonism that claimed knowledge of truth was impossible. Empiricism is a closely related, but not identical, position to philosophical skepticism. Empiricists see empiricism as a pragmatic compromise between philosophical skepticism and nomothetic science; philosophical skepticism is in turn sometimes referred to as "radical empiricism."

Philosophical skepticism originated in ancient Greek philosophy. One of its first proponents was Pyrrho of Elis (c. 360-275 B.C.), who traveled and studied as far as India, and propounded the adoption of 'practical' skepticism. Subsequently, in the 'New Academy' Arcesilaos (c. 315-241 B.C.) and Carneades (c. 213-129 B.C.) developed more theoretical perspectives, by which conceptions of absolute truth and falsity were refuted. Carneades criticized the views of the Dogmatists, especially supporters of Stoicism, asserting that absolute certainty of knowledge is impossible. Sextus Empiricus (c. A.D. 200), the main authority for Greek skepticism, developed the position further, incorporating aspects of empiricism into the basis for asserting knowledge.

Greek skeptics criticized the Stoics, accusing them of dogmatism. For the skeptics, the logical mode of argument was untenable, as it relied on propositions which could not be said to be either true or false without relying on further propositions. This was the regress argument, whereby every proposition must rely on other propositions in order to maintain its validity. In addition, the skeptics argued that two propositions could not rely on each other, as this would create a circular argument (as p implies q and q implies p). For the skeptics such logic was thus an inadequate measure of truth which could create as many problems as it claimed to have solved. Truth was not, however, necessarily unobtainable, but rather an idea which did not yet exist in a pure form. Although skepticism was accused of denying the possibility of truth, in actual fact it appears to have mainly been a critical school which merely claimed that logicians had not discovered truth.

[编辑] Empirical skepticism

An empirical skeptic is one who refuses to accept certain kinds of claims without subjecting them to a systematic investigation. For many empirical skeptics, this process is akin to the scientific method. This does not mean that the empirical skeptic is necessarily a scientist who conducts live experiments (though this may be the case), but that the skeptic generally accepts claims that are in his/her view likely to be true based on testable hypotheses and critical thinking.

Most empirical skeptics do not profess philosophical skepticism. Whereas a philosophical skeptic may deny the very existence of knowledge, an empirical skeptic merely seeks likely proof before accepting that knowledge.

[编辑] Scientific skepticism

Scientific skepticism is a branch of empirical skepticism that addresses scientific claims. Common topics in scientifically skeptical literature include health claims surrounding certain foods, procedures, and medicines, such as homeopathy, Reiki, Thought Field Therapy (TFT), vertebral subluxations; the plausibility of supernatural entities (such as ghosts, poltergeists, angels, and gods); as well as the existence of ESP/telekinesis, psychic powers, and telepathy; topics in cryptozoology, Bigfoot, the Loch Ness monster, UFOs, crop circles, astrology, repressed memories, creationism, dowsing, conspiracy theories, and other claims the skeptic sees as unlikely to be true on scientific grounds.

[编辑] Religious skepticism

Religious skepticism is skepticism regarding faith-based claims. Religious skeptics may focus on the core tenets of religions, such as the existence of divine beings, or reports of earthly miracles. A religious skeptic is not necessarily an atheist or agnostic.

[编辑] Activist skepticism

主条目：Debunker

Activist skeptics, self-described "debunkers" are a subset of empirical skeptics who aim to expose in public what they see as the truth behind specific extraordinary claims. Debunkers may publish books, air TV programs, create websites, or use other means to advocate their message. In some cases they may challenge claimants outright or even stage elaborate hoaxes to prove their point.

Because debunkers often attack popular ideas, many are not strangers to controversy. Critics of debunkers sometimes accuse them of robbing others of hope. Debunkers frequently reply that it is the claimant, whom they many times accuse of exploiting public gullibility, who is guilty of abuse.

Habitual debunkers, especially those who intentionally rely on pseudoscience masquerading as empirical skepticism, are sometimes called pseudoskeptics or pathological skeptics.

[编辑] References

• A Greek-English Lexicon, Henry George Liddell and Robert Scott, revised and augmented throughout by Sir Henry Stuart Jones, with the assistance of Roderick McKenzie, Clarendon Press, Oxford, UK, 1940. Online.

• Webster's New International Dictionary of the English Language, Second Edition, Unabridged, W.A. Neilson, T.A. Knott, P.W. Carhart (eds.), G. & C. Merriam Company, Springfield, MA, 1950.

• Keeton, Morris T., "Scepticism", pp. 277–278 in Dagobert D. Runes (ed.), Dictionary of Philosophy, Littlefield, Adams, and Company, Totowa, NJ, 1962.

• Runes, D.D. (ed.), Dictionary of Philosophy, Littlefield, Adams, and Company, Totowa, NJ, 1962.

[编辑] Further reading

• Sextus Empiricus, Outlines of Pyrrhonism, R.G. Bury (trans.), Prometheus Books, Buffalo, NY, 1990.