📚 IGCSE WJEC Philosophy: Core Concepts Revision Guide | IGCSE WJEC 哲学：核心知识点梳理
The IGCSE WJEC Philosophy specification challenges you to think critically about some of life’s deepest questions – Does God exist? Do we have free will? How should we live? This revision guide distils the core concepts from the Philosophy of Religion, Philosophy of Mind, and Moral Philosophy components, presenting each idea in clear English‑Chinese pairs to help you grasp key arguments, key thinkers, and essential terminology.
IGCSE WJEC 哲学课程要求你批判性地思考一些人生最深邃的问题——上帝存在吗？我们有自由意志吗？我们应该如何生活？这份复习指南精炼了宗教哲学、心灵哲学和道德哲学部分的核心概念，以清晰的中英对照方式呈现每一个观点，帮助你掌握关键论证、关键思想家以及核心术语。
1. The Teleological (Design) Argument | 目的论（设计）论证
The Teleological Argument claims that the order, complexity, and apparent purpose in the natural world point to an intelligent designer – God. William Paley famously used the watchmaker analogy: if you found a watch on a heath, its intricate parts working together for a purpose would lead you to infer a watchmaker; likewise, the even greater complexity of living organisms implies a Divine Designer.
目的论论证主张，自然世界中的秩序、复杂性以及显见的目的指向一位智慧的设计者——上帝。威廉·佩利以钟表匠类比闻名：如果你在荒地上发现一只手表，其精密零件为某一目的协同工作，你会推断存在一位钟表匠；同样，生物体更为复杂的构造也意味着一位神圣的设计者。
David Hume’s criticisms remain powerful: the analogy is weak because the universe is not sufficiently like a machine; an imperfect world suggests an imperfect designer, or even a team of designers; and the design argument does not prove the God of classical theism – it could equally support polytheism or a finite, mortal designer.
大卫·休谟的批评至今有力：类比是薄弱的，因为宇宙并不完全像一台机器；一个不完美的世界暗示着不完美的设计者，甚至是一群设计者；而且设计论证并不能证明古典有神论的上帝——它同样可以支持多神论或一个有限的、会死的设计者。
2. The Cosmological Argument | 宇宙论论证
The Cosmological Argument seeks a first cause or necessary being to explain why anything exists at all. Thomas Aquinas presented the First Cause Argument (the ‘Uncaused Causer’) and the Argument from Contingency: everything in the universe is contingent (it depends on something else), so there must be a necessary being (God) which depends on nothing and on which all contingent things ultimately depend.
宇宙论论证寻求第一因或必然存在来解释为何存在任何事物。托马斯·阿奎那提出了第一因论证（“不被推动的推动者”）和偶然性论证：宇宙中的万物都是偶然的（依赖他物而存在），因此必有一个必然的存在者（上帝），它不依赖任何事物，而一切偶然事物最终都依赖于它。
The Kalam version, developed by Islamic philosophers, argues that an actual infinite cannot exist in reality – so a beginning to the universe is inescapable, and that beginning requires a personal cause. Critics, including Hume and Bertrand Russell, point out that the argument commits the fallacy of composition (just because parts have a cause does not mean the whole does) and that ‘God’ is a bigger mystery than the universe itself.
由伊斯兰哲学家发展的卡拉姆版本论证，现实的无限回溯不可能存在——因此宇宙必须有一个开端，而这个开端需要一个有位格的原因。包括休谟和罗素在内的批评者指出，该论证犯了组成谬误（部分有原因并不意味着整体有原因），而且“上帝”本身比宇宙更加难以解释。
3. The Ontological Argument | 本体论论证
Anselm’s Ontological Argument is an a priori argument that defines God as ‘that than which nothing greater can be conceived’. If such a being exists only in the mind, it would be less great than if it existed in reality; therefore, to avoid contradiction, God must exist in reality. Anselm’s reasoning moves from the definition of God directly to God’s existence.
安瑟伦的本体论论证是一个先验论证，将上帝定义为“无法设想有比之更伟大者”。如果这样的存在者仅存在于心灵中，那就不如同时在现实中存在那么伟大；因此，为避免矛盾，上帝必然在现实中存在。安瑟伦的推理从上帝的定义直接推到了上帝的存在。
Gaunilo’s ‘Lost Island’ parody attempted to show that using Anselm’s logic we could prove the existence of a perfect island. Kant later criticised the argument by insisting that existence is not a predicate – ‘God exists’ does not add a property to the concept of God; it simply posits that the concept is instantiated. Nevertheless, the argument continues to fascinate modern philosophers like Alvin Plantinga, who reformulated it using possible worlds semantics.
高尼罗的“迷失岛”戏仿试图表明，用安瑟伦的逻辑可以证明一座完美岛屿的存在。后来康德批评该论证，坚称存在不是谓词——“上帝存在”并没有给上帝的概念增加任何属性，它只是假设概念被实例化了。尽管如此，该论证仍吸引着现代哲学家如阿尔文·普兰丁格，他用可能世界语义学重构了该论证。
4. The Problem of Evil and Suffering | 恶与苦难的问题
The logical problem of evil states that the existence of an omnipotent, omnibenevolent God is logically incompatible with the existence of evil. If God can prevent evil but does not, He is not all‑loving; if He wants to but cannot, He is not all‑powerful. The evidential problem focuses on the sheer amount and distribution of pointless suffering, which makes God’s existence highly improbable.
恶的逻辑问题认为，全能、全善的上帝之存在与恶之存在在逻辑上不相容。如果上帝能够阻止恶而不阻止，他就不是全爱的；如果他想要阻止却不能，他就不是全能的。恶的证据问题则关注无意义苦难的巨大数量与分布，这使得上帝的存在极不可能。
Augustine’s theodicy turns evil into a privation – a lack of good – caused by the misuse of free will. All suffering is a consequence of original sin, and God is justified because He will redeem the elect. Irenaeus’ soul‑making theodicy, developed by John Hick, sees suffering as a necessary condition for moral and spiritual growth, allowing humans to develop into the likeness of God. Critics argue that such theodicies fail to justify the suffering of animals and innocent children.
奥古斯丁的神正论将恶转为一种缺失——善的缺乏——由自由意志的滥用所致。一切苦难都是原罪的后果，而上帝的公义在于他将救赎选民。爱任纽的“灵魂塑造”神正论，由约翰·希克发展，认为苦难是道德和精神成长的必然条件，使人类能成长为上帝的样式。批评者认为，这些神正论无法为动物的苦难和无辜儿童的苦难辩护。
5. Religious Experience as Evidence | 宗教体验作为证据
A religious experience is a subjective encounter with the divine. William James identified four characteristics: ineffability (cannot be fully described in words), noetic quality (the recipient gains deep insight), transiency (the experience is brief), and passivity (the person feels taken over by a higher power). Mystical experiences, conversion experiences, and corporate experiences all claim to provide direct awareness of God.
宗教体验是与神相遇的主观经历。威廉·詹姆斯确定了四个特征：不可言喻（无法用语言充分描述）、理智性（接受者获得深刻洞见）、短暂性（体验短暂）以及被动性（人感觉被更高力量掌管）。神秘体验、皈依体验和集体体验都声称提供对上帝的直接觉知。
Critics such as Freud argue that religious experiences are psychological projections of a father figure, while others point out that conflicting experiences from different religions undermine their reliability. Nevertheless, for believers, the principle of credulity (Richard Swinburne) suggests we should trust what appears to be the case unless we have defeating evidence, making religious experience a legitimate basis for belief.
弗洛伊德等批评者认为，宗教体验是父亲形象的心理投射，其他人则指出不同宗教之间相互冲突的体验削弱了其可靠性。然而，对信徒而言，轻信原则（理查德·斯温伯恩）表明，除非有击败性的证据，我们应当相信事物向我们所呈现的样子，这使得宗教体验成为信仰的合理基础。
6. Life after Death: Dualism vs. Materialism | 死后的生命：二元论 vs 唯物主义
Belief in life after death often presupposes some form of dualism – that a person is a composite of a physical body and a non‑physical soul that can survive death. Plato argued for the immortality of the soul on the grounds that the soul is simple, non‑composite, and akin to the eternal Forms, whereas the body is corruptible.
对死后生命的信仰往往预设了某种形式的二元论——即人是由物质身体和非物质的灵魂组成的复合体，灵魂在死后得以存活。柏拉图论证灵魂不朽，根据是灵魂是单纯的、非复合的，近似于永恒的理型，而身体是可朽的。
Christianity envisages a resurrection of the body, not merely a disembodied soul. Materialist accounts, however, deny any separable soul: death is the cessation of brain function, and personhood is a set of capacities generated by the brain. Near‑death experiences are often cited by dualists as evidence, but materialists explain them as hallucinations caused by oxygen deprivation. The debate turns on whether consciousness can exist independently of the brain.
基督教设想的是身体的复活，而不仅仅是脱离身体的灵魂。然而，唯物主义的解释否认存在可分离的灵魂：死亡就是大脑功能的终止，人格是由大脑产生的一系列能力。濒死体验常被二元论者引为证据，但唯物主义者将其解释为缺氧导致的幻觉。争论的核心在于意识能否独立于大脑而存在。
7. The Mind-Body Problem: Substance Dualism | 心身问题：实体二元论
Substance dualism, most associated with René Descartes, holds that mind and body are two fundamentally different substances – the mind is non‑extended and thinking (res cogitans), while the body is extended and non‑thinking (res extensa). The interaction problem asks how an immaterial mind can cause physical changes in the body, and vice versa. Descartes proposed the pineal gland as the point of interaction, but this merely relocates the mystery.
与笛卡尔联系最紧密的实体二元论主张，心灵与身体是两种根本不同的实体——心灵是非广延且能思考的（res cogitans），而身体是广延且不能思考的（res extensa）。互动问题则质问，非物质的心灵如何能在身体中引发物理变化，反之亦然。笛卡尔提出松果腺为互动点，但这只是转移了谜团。
Dualism captures the intuition that mental states seem utterly unlike physical states – the ‘what it is like’ to feel pain. However, modern neuroscience undermines dualism by showing that damage to specific brain areas destroys specific mental functions. The Princess Elisabeth of Bohemia famously challenged Descartes: how can a thought push a physical nerve? This objection remains a live issue.
二元论捕捉到了这样一种直觉，即心理状态似乎完全不同于物理状态——感受到疼痛的那种“像是什么”。然而，现代神经科学通过显示特定大脑区域的损伤会摧毁特定心理功能，动摇了二元论。波西米亚的伊丽莎白公主曾著名地向笛卡尔挑战：一个想法如何能推动一条神经？这一反对至今仍是活跃的议题。
8. Materialism and Functionalism | 唯物主义与功能主义
Materialism (or physicalism) asserts that everything that exists is physical, and that mental states are identical to brain states. The mind‑brain identity theory claims that pain just is C‑fibre firing. Eliminative materialism goes further, arguing that our folk psychology of beliefs and desires will eventually be replaced by a completed neuroscience, just as we replaced talk of demons with talk of disease.
唯物主义（或物理主义）主张，存在的一切都是物理的，心理状态等同于大脑状态。心脑同一论声称，疼痛无非就是C‑纤维的放电。消除式唯物主义更进一步，主张我们关于信念和欲望的民间心理学最终将被完备的神经科学所替代，正如我们用疾病取代关于魔鬼的谈论一样。
Functionalism offers a softer alternative: mental states are defined by their causal roles – what they do, not what they are made of. A pain is whatever state is typically caused by tissue damage and causes wincing and a desire to escape. Functionalism allows that a machine or an alien made of non‑biological stuff could have minds, provided it implements the right functional organisation. Critics worry that functionalism leaves out the qualitative feel (‘qualia’) of experience.
功能主义提供了一种更温和的选择：心理状态由它们的因果角色来定义——它们做什么，而非它们由什么构成。疼痛就是那种通常由组织损伤引起，并导致畏缩和逃避欲望的状态。功能主义允许，一台机器或由非生物材料构成的外星人也可以拥有心灵，只要它实现了正确的功能组织。批评者担心功能主义忽略了体验的质性感受（“感质”）。
9. Free Will, Determinism, and Moral Responsibility | 自由意志、决定论与道德责任
Determinism claims that every event, including human actions, is necessitated by prior causes. Hard determinists argue that if determinism is true, we have no free will and thus cannot legitimately be held morally responsible – praise and blame become irrational. Libertarianism, in contrast, insists that we do have genuine free will, and that determinism is false: we are the originating causes of our actions, through a special kind of agent‑causation.
决定论主张，每一个事件，包括人的行为，都是先前原因必然导致的结果。强硬决定论者认为，如果决定论为真，我们就没有自由意志，因而也不能合法地承担道德责任——赞扬和责备就变得不合理。相反，自由意志论坚持我们确实拥有真正的自由意志，决定论是错误的：通过一种特殊的行动者原因，我们是自身行动的原创性原因。
Compatibilism (soft determinism) tries to reconcile determinism with free will by redefining free will as the ability to act according to one’s desires without external coercion. For compatibilists like Hume, ‘free’ does not mean uncaused; it means uncoerced. Critics argue that this still leaves us as puppets of our upbringing and biology, which does not satisfy our intuition of being genuinely self‑determining.
相容论（软决定论）试图通过将自由意志重新定义为按照个人欲望行动而不受外部强制的能动力，来调和决定论与自由意志。对休谟这样的相容论者来说，“自由”并不意味着无原因，而是意味着无强制。批评者认为，这仍使我们成为成长环境和生物禀赋的傀儡，这并不满足我们关于真正自主的直觉。
10. Ethical Theories: Utilitarianism | 伦理理论：功利主义
Utilitarianism is a consequentialist theory: the moral worth of an action is determined solely by its consequences – specifically, the amount of happiness or pleasure it produces. Jeremy Bentham’s Act Utilitarianism uses the Hedonic Calculus to measure pleasure across seven dimensions, including intensity, duration, certainty, and extent. The principle of utility commands us to pursue the greatest happiness for the greatest number.
功利主义是一种后果论：一个行为的道德价值完全由其后果——具体地说，由它所产生的幸福或快乐的总量——来决定。耶利米·边沁的行为功利主义使用幸福计算法，从七个维度衡量快乐，包括强度、持续时间、确定性和范围。功利原则命令我们追求最大多数人的最大幸福。
| Bentham / 边沁 | Mill / 密尔 |
|---|---|
| Quantitative hedonism – all pleasures are equal in kind. / 量的快乐主义——所有快乐在种类上一律平等。 | Qualitative hedonism – higher (intellectual) pleasures are superior to lower (bodily) pleasures. / 质的快乐主义——高等级（理智）快乐优于低等级（肉体）快乐。 |
| Focus on individual actions (Act Utilitarianism). / 关注个别行为（行为功利主义）。 | Defended Rule Utilitarianism: follow rules that generally promote happiness. / 辩护规则功利主义：遵循那些通常会促进幸福的规则。 |
Common objections include the tyranny of the majority (slavery could be justified if it maximises pleasure), the demandingness objection, and the fact that utilitarianism ignores motives and rights. Despite its challenges, utilitarianism remains highly influential in public policy and bioethics.
常见的反对包括多数人的暴政（如果奴隶制能最大化快乐，就可能被正当化）、过度要求论，以及功利主义忽视动机和权利的事实。尽管面临挑战，功利主义在公共政策和生命伦理学中依然极具影响。
11. Ethical Theories: Kantian Ethics and the Categorical Imperative | 伦理理论：康德伦理学与绝对命令
Immanuel Kant’s deontological ethics judges actions not by their consequences but by whether they are done from duty and conform to the moral law. The only purely good thing is a good will. An action has moral worth only if it is performed for the sake of duty, not from inclination.
康德的义务论伦理学不以后果来评判行为，而是以行为是否出于义务并符合道德法则为依据。唯一纯粹善的东西是善良意志。一个行为只有当其出于义务而非出于爱好而做出时，才具有道德价值。
The Categorical Imperative is the supreme principle of morality, expressed in three main formulations: (1) Universal Law – ‘Act only according to that maxim whereby you can at the same time will that it should become a universal law’. (2) Humanity Formula – ‘Act so that you treat humanity, whether in your own person or in that of another, always as an end and never as a means only’. (3) Kingdom of Ends – act as if you were a legislating member in a realm of rational beings who treat one another as ends.
绝对命令是道德的最高原则，主要有三个表述：（1）普遍法则——“要只按照你同时能够愿意它成为一条普遍法则的那个准则去行动”。（2）人性公式——“你要如此行动，即无论是你人格中的人性，还是任何他人人格中的人性，你永远同时当作目的，决不只当作手段来对待”。（3）目的王国——仿佛你是理性存在者组成的目的王国中的立法成员一样去行动，在此王国中人们彼此视为目的。
Strengths include its respect for human dignity and its ability to generate absolute rules, such as a prohibition on lying or killing. Weaknesses concern conflicting duties (e.g. hiding an innocent person from a murderer while being asked their location) and its coldness towards emotions and consequences. However, Kant’s emphasis on rational autonomy remains foundational for human rights discourse.
其优点包括对人类尊严的尊重，以及生成绝对规则的能力，如禁止撒谎或杀人。弱点则涉及义务冲突（例如，当凶手询问时隐藏无辜者并面临是否撒谎的困境）以及对情感和后果的冷漠。然而，康德对理性自律的强调至今仍是人权话语的基石。
12. Applied Ethics: Euthanasia and the Sanctity of Life | 应用伦理学：安乐死与生命神圣
Euthanasia (‘good death’) raises profound questions about autonomy, suffering, and the value of life. Voluntary active euthanasia involves a doctor directly ending a patient’s life at their persistent request; passive euthanasia involves withdrawing life‑sustaining treatment and is widely accepted. Physician‑assisted suicide gives the patient the means to end their own life.
安乐死（“好的死亡”）引发了关于自主权、痛苦和生命价值的深刻问题。自愿主动安乐死涉及医生应病人持续请求直接结束其生命；被动安乐死涉及撤除维持生命的治疗，已被广泛接受。医生协助自杀则给予病人结束自己生命的手段。
The sanctity of life principle, rooted in religious ethics, holds that life is a gift from God and only God may take it away; this leads to an absolute prohibition against intentional killing. The quality of life approach, championed by utilitarians like Peter Singer, argues that when a person’s life falls below a threshold of unbearable suffering with no prospect of improvement, euthanasia can be the compassionate choice and respect for autonomy outweighs mere biological existence.
生命神圣原则植根于宗教伦理，它主张生命是上帝的恩赐，只有上帝有权取走；这导致对故意杀人的绝对禁止。以彼得·辛格为代表的功利主义者所倡导的生命质量路径则认为，当一个人的生命跌入难以忍受的痛苦且无改善前景时，安乐死可以是一种同情之选，对自主权的尊重胜过单纯的生物性生存。
Key safeguards in jurisdictions where euthanasia is legal include multiple medical opinions, waiting periods, and psychiatric evaluation to rule out treatable depression. Slippery slope concerns, however, warn that normalising voluntary euthanasia could eventually pressure the vulnerable and erode palliative care. The debate continues to evolve with changing societal attitudes.
在安乐死合法的司法管辖区，关键保障措施包括多份医学意见、等待期以及精神科评估以排除可治疗的抑郁症。然而，滑坡效应担忧警告说，将自愿安乐死常态化可能最终对弱势群体构成压力并侵蚀姑息治疗。随着社会态度的变化，该辩论仍在演变。
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