📚 AS Eduqas Philosophy: Core Knowledge Overview | AS Eduqas 哲学：核心知识点梳理
The AS Eduqas Philosophy specification challenges students to engage with fundamental questions about reality, knowledge, and value. This concise overview maps the essential topics, arguments, and distinctions that form the backbone of the course. By mastering these core concepts, students build a rigorous framework for evaluating classical and contemporary philosophical positions under exam conditions.
AS Eduqas 哲学课程要求学生探讨关于实在、知识与价值的根本问题。本篇概述梳理了构成课程主干的核心议题、论证与区分。掌握这些核心概念，学生即可构建起严谨的框架，在考试情境下有效评析古典与当代的哲学立场。
1. Epistemology: Rationalism vs. Empiricism | 认识论：理性主义与经验主义
Rationalism holds that the primary source of knowledge is reason, and that some concepts and truths are innate. Thinkers like Plato and Descartes argue that sensory experience is fallible, so genuine knowledge must be derived from a priori reflection. For Plato, knowledge is recollection of the Forms, accessed through rational intuition. Descartes establishes the cogito (‘I think, therefore I am’) as a clear and distinct idea known independently of the senses.
理性主义主张知识的主要来源是理性，且某些概念与真理是天赋的。柏拉图与笛卡尔等思想家认为感官经验不可靠，真正的知识必须源自先天反思。对柏拉图而言，知识是对理型的回忆，通过理性直观获得。笛卡尔则将“我思故我在”确立为不依赖于感官的清楚明白的观念。
Empiricism counters that all ideas originate in experience. Locke attacks innate ideas, portraying the mind as a tabula rasa at birth. Hume classifies all perceptions into impressions (vivid sensory inputs) and ideas (faint copies). He further distinguishes relations of ideas (a priori, demonstrable truths like mathematics) from matters of fact (a posteriori, based on cause and effect). For Hume, causal connections are not rationally justified but are habits of thought derived from constant conjunction.
经验主义则认为所有观念均源自经验。洛克抨击天赋观念，将心灵描述为出生时的白板。休谟将所有知觉分为印象（生动的感官输入）和观念（模糊的摹本）。他进一步区分了观念的关系（先天的、可证明的真理，如数学）与事实（后天的、基于因果关系的）。对休谟而言，因果联系并非理性证成，而是源自恒常联结形成的思维习惯。
The debate is central to defining a priori and a posteriori knowledge. A priori knowledge is independent of experience, whereas a posteriori knowledge depends on sensory observation. The rationalist believes substantive a priori knowledge exists about the world, while the empiricist insists that all factual knowledge must be traced back to impressions.
这场争论是界定先天知识与后天知识的核心。先天知识独立于经验，后天知识则依赖感官观察。理性主义者相信存在关于世界的实质性先天知识，而经验主义者坚持一切事实性知识都必须追溯到印象。
2. The Tripartite Definition of Knowledge | 知识的三元定义
Since Plato’s Theaetetus, knowledge has traditionally been analysed as justified true belief (JTB). A subject S knows that P if and only if P is true, S believes that P, and S has justification for believing that P. Truth is a mind-independent condition; belief is the psychological state of assenting to a proposition; justification involves evidence or reasons that ground the belief.
自柏拉图的《泰阿泰德篇》以来，知识传统上被分析为确证的真信念（JTB）。主体 S 知道命题 P 当且仅当 P 为真，S 相信 P，且 S 拥有相信 P 的确证。真是独立于心灵的条件；信念是认同命题的心理状态；确证则涉及支撑信念的证据或理由。
Gettier’s famous counterexamples show that JTB is not sufficient for knowledge. In a Gettier case, a belief is true and justified, yet the truth is accidentally connected to the justification. For example, Smith has strong evidence that Jones owns a Ford (justification), and from this infers the disjunction ‘Either Jones owns a Ford or Brown is in Barcelona’. Unbeknown to Smith, Jones does not own a Ford, but Brown happens to be in Barcelona. The belief is true and justified, but it is not knowledge because the justification does not track the truth appropriately.
盖梯尔的著名反例表明 JTB 不足以定义知识。在盖梯尔案例中，信念为真且得到确证，但真值与确证之间是偶然联系的。例如，史密斯有充分证据相信琼斯拥有一辆福特车（确证），并由此推断选言命题“要么琼斯拥有一辆福特车，要么布朗在巴塞罗那”。史密斯不知晓琼斯并没有福特，可布朗恰好在巴塞罗那。该信念为真且得到确证，却不是知识，因为确证并未恰当地追踪真值。
Responses to Gettier include adding a ‘no false lemmas’ condition or a causal connection requirement. Reliabilism shifts the focus to the process: a belief counts as knowledge if it is produced by a reliable cognitive process that yields a high proportion of true beliefs.
对盖梯尔的回应包括增加“无虚假引理”条件或因果联系要求。可靠主义将焦点转向过程：若一个信念由可靠认知过程产生，且该过程能产出高比例的真信念，则该信念可算作知识。
3. Scepticism: Cartesian and Humean Challenges | 怀疑论：笛卡尔式与休谟式挑战
Global scepticism questions whether any knowledge is possible. Descartes introduces the method of doubt, imagining an evil demon that deceives him about all sensory input and even mathematical reasoning. The only certainty that resists this hyperbolic doubt is the cogito. From this Archimedean point, Descartes attempts to rebuild knowledge by proving God’s existence and God’s non-deceptive nature, a strategy many find circular or unconvincing.
全面怀疑论质疑是否任何知识都是可能的。笛卡尔引入普遍怀疑的方法，设想一个邪恶的精灵在他所有的感官输入乃至数学推理上欺骗他。唯一能经得起这种超常怀疑的确定性便是我思。从这个阿基米德点出发，笛卡尔试图通过证明上帝存在以及上帝非欺骗的本性来重建知识，这一策略被许多人认为循环或不具说服力。
Hume’s scepticism is more localised. He argues that the principle of induction – that the future will resemble the past – cannot be rationally justified. Any attempt to justify induction uses inductive reasoning itself, rendering it circular. Furthermore, our belief in an external world of enduring objects is a product of the imagination, not reason; we mistake the constancy and coherence of our perceptions for a mind-independent reality. Hume thus limits knowledge to immediate impressions and demonstrable relations of ideas, making everyday beliefs about causation and matter matters of custom rather than certain knowledge.
休谟的怀疑论更为局部化。他认为归纳原则——即未来将类似于过去——无法得到理性的证成。任何证成归纳的尝试都运用了归纳推理本身，导致循环论证。此外，我们对外部持续存在对象的世界的信念是想象力的产物，而非理性；我们将知觉的恒常性与连贯性误认为独立于心灵的存在。休谟因此将知识限制于直接印象和可证明的观念关系，使日常关于因果与物质的信念成为习惯而非确定知识。
4. The Ontological Argument | 本体论论证
Anselm defines God as ‘that than which nothing greater can be conceived’. He argues that if this being exists only in the mind, we could conceive of an even greater being that exists in reality as well. Since God is the greatest conceivable, He must exist both in the mind and in reality. Gaunilo parodies the argument with the perfect island, suggesting that one cannot define a thing into existence.
安瑟伦将上帝定义为“不能设想比之更伟大的存在者”。他论证说，如果这个存在者仅存在于心灵中，那么我们就能设想一个同样存在于实在中的更伟大的存在者。既然上帝是可设想之最伟大者，他必定既存在于心灵中也存在于实在中。高尼罗用完美海岛模仿该论证，指出不能通过定义使一物存在。
Descartes’ version of the ontological argument rests on the idea that existence is a perfection. Just as a triangle’s essence includes having three angles, God’s essence includes existence, because a supremely perfect being cannot lack any perfection. Kant’s objection is foundational: existence is not a predicate or a property that can be added to the concept of a thing. The concept of 100 thalers with existence added is no different from the concept of 100 possible thalers; the latter simply posits the object as actual. Thus, the ontological argument fails logically.
笛卡尔版本的本体论论证基于存在是一种完满性的观念。正如三角形的本质包含具有三角，上帝的本质包含存在，因为一个至上完满的存在者不可能缺少任何完满性。康德的反对是根本性的：存在不是谓词，不是可添加到事物概念上的属性。添加了存在概念的 100 塔勒与可能存在的 100 塔勒的概念没有区别；后者只是将对象设定为现实的。因此，本体论论证在逻辑上不成立。
5. The Cosmological Argument | 宇宙论论证
Aquinas presents the first three of his Five Ways as cosmological arguments. The First Way focuses on motion (change): things are moved by something else, and an infinite regress of movers is impossible; there must be a first unmoved mover, which is God. The Second Way moves from efficient causality: no effect can cause itself, so there must be a first uncaused cause. The Third Way argues from contingency: contingent beings depend on something else for their existence; because contingent things exist, at least one necessary being must have always existed to ground them. Aquinas identifies this necessary being with God.
阿奎那提出的五路论证中，前三路为宇宙论论证。第一路聚焦于运动（变化）：万物被其他事物推动，无限的推动者回溯不可能，故必有一不被推动的第一推动者，这便是上帝。第二路从动力因出发：结果不能自因，故必有一无因的第一因。第三路从偶然性论证：偶然存在物依赖他物而存在；既然偶然事物存在，则至少有一必然存在者一直存在为其奠基。阿奎那将该必然存在者等同于上帝。
Hume and Russell challenge the argument’s assumptions. Hume argues that the principle of sufficient reason – that everything must have a cause or reason – need not apply to the universe as a whole. Even if each event within the universe has a cause, it does not follow that the universe itself requires a cause. Russell famously held that the universe just is a brute fact. The cosmological argument also commits a fallacy of composition, inferring that the whole has a property (a cause) simply because its parts do.
休谟与罗素挑战了论证的假设。休谟认为充足理由原理——凡事必有因——不必然适用于作为整体的宇宙。即使宇宙内的每个事件都有原因，也不能推出宇宙本身需要原因。罗素著名地认为宇宙只是一个原初事实。宇宙论论证还犯了分解谬误，仅仅因为部分具有某种属性（原因）就推断整体也具有该属性。
6. The Teleological Argument | 目的论论证
William Paley’s design argument uses the analogy of a watch found on a heath. The watch’s complexity and purposeful arrangement of parts imply a watchmaker; similarly, the world exhibits order, complexity, and apparent purpose, which implies a divine designer. Paley emphasises that even imperfections or parts whose function we do not understand do not undermine the inference to design.
威廉·佩利的设计论证使用荒野中发现手表的类比。手表的复杂性与部件的有目的排列暗示着制表师；同样，世界呈现出秩序、复杂性与明显的目的，这暗示着一位神圣的设计者。佩利强调，即使存有不完善之处或功能不明的部件，也不会削弱对设计的推论。
Hume’s Philo, through dialogues, raises powerful objections. An analogue argument is weak because the universe is not sufficiently similar to a human artefact. Moreover, given imperfections and evils, the world more closely resembles a rudimentary, flawed product of an apprentice deity, not an omnibenevolent, omnipotent creator. Darwin’s theory of evolution by natural selection provides a non-intentional mechanism that explains apparent design in biological organisms. Random variation and natural selection can generate complex adaptive structures without foresight, making the intelligent designer hypothesis unnecessary.
休谟借斐洛于对话录中提出了强有力的反驳。类比论证薄弱，因为宇宙与人类制品并不充分相似。再者，鉴于世界有缺陷和恶，它更接近一个技艺不精的次等神祇的粗陋作品，而非全善全能造物主。达尔文的自然选择进化论提供了一个无需意图的机制，解释了生物有机体中的貌似设计。随机变异与自然选择能在无先见的情况下产生复杂的适应性结构，令睿智设计者假说成为多余。
7. The Problem of Evil | 恶的问题
The logical problem of evil, articulated by Epicurus and later Mackie, asserts that the existence of an omnipotent, omnibenevolent God is logically incompatible with the existence of evil. If God is all-powerful, He could prevent evil; if all-loving, He would want to; yet evil exists. Therefore, such a God does not exist. Mackie formalises this as an inconsistent triad: God’s omnipotence, God’s omnibenevolence, and the reality of evil cannot all be true.
由伊壁鸠鲁提出、后经麦基阐述的逻辑恶问题主张，全能、全善的上帝与恶的存在在逻辑上不相容。如果上帝全能，他就能阻止恶；如果全善，他就会想要阻止恶；然而恶存在。因此，这样的上帝不存在。麦基将此形式化为不一致的三元组：上帝全能、上帝全善、恶真实存在，三者不能同时为真。
Augustine’s theodicy draws on the free will defence and a privation theory of evil. Evil is not a positive substance but the absence or privation of good. All creation was originally good, but angels and humans misused their God-given free will, leading to the Fall and the corruption of the natural order. Thus, God permits evil as the consequence of freely chosen sin, and it is ultimately rectified through divine justice. The Irenaean theodicy, developed by Hick, envisions the world as a soul-making environment in which evil and suffering enable genuine moral and spiritual growth, allowing humans to become freely loving children of God.
奥古斯丁的神正论借助自由意志辩护和恶的缺乏论。恶并非正面实体，而是善的缺失或匮乏。起初受造物皆为善，但天使与人类误用了上帝所赐的自由意志，导致堕落与自然秩序的败坏。因此，上帝容许恶作为自由选择之罪的后果，最终通过神圣正义得到纠正。由希克发展的爱任纽神正论则设想世界为塑造灵魂的场所，恶与苦难促成了真正的道德与灵性成长，使人得以自由地成为上帝的儿女。
The evidential problem of evil, focused on the quantity and distribution of apparently pointless suffering, poses a greater challenge to theistic belief. The sheer scale of animal suffering, pointless horrors, and the unequal distribution of pain seem to outweigh any soul-making purpose, making God’s existence improbable.
证据性的恶问题聚焦于大量明显无意义的苦难及其分布，这对有神论信仰构成更大挑战。动物庞大苦难、无端恐惧与痛苦的不均分配，似乎超过任何塑造灵魂的目的，令上帝的存在显得不太可能。
8. Utilitarianism: Bentham and Mill | 功利主义：边沁与密尔
Utilitarianism is a consequentialist ethical theory positing that the right action is the one that maximises utility. For Bentham, utility is pleasure and the absence of pain. His hedonistic calculus quantifies pleasure based on seven dimensions: intensity, duration, certainty, propinquity, fecundity, purity, and extent. This quantitative approach aims to give an objective, democratic measure of happiness, treating each individual’s pleasure as equally important.
功利主义是一种后果论伦理学理论，主张正确的行为是能最大化效用的行为。对边沁而言，效用即快乐与无痛苦。他的快乐计算法从七个维度量化快乐：强度、持续时间、确定性、远近、丰度、纯度与范围。这种量化方法旨在提供客观、平等的幸福度量，将每个人的快乐视为同等重要。
J.S. Mill refines utilitarianism by distinguishing higher pleasures (intellectual, moral) from lower pleasures (bodily). In his famous remark, it is ‘better to be a human being dissatisfied than a pig satisfied; better to be Socrates dissatisfied than a fool satisfied.’ Mill argues that competent judges, who have experienced both kinds of pleasure, consistently prefer the higher ones. This introduces a qualitative element, addressing the criticism that Bentham’s calculus reduces human goods to swinish pleasures.
密尔通过区分高级快乐（智识的、道德的）与低级快乐（身体的）完善了功利主义。他有著名论述：“宁做不满足的人，不做满足的猪；宁做不满足的苏格拉底，不做满足的傻瓜。”密尔论证称，经历了两种快乐的合格裁判官一致偏好高级快乐。这引入了质的因素，回应了关于边沁计算将人类善降低为猪的快乐的批评。
Act utilitarianism evaluates each individual act directly, while rule utilitarianism evaluates actions according to rules that tend to promote the greatest happiness. Rule utilitarianism avoids some counter-intuitive implications of act utilitarianism, such as the permissibility of breaking promises or punishing the innocent when it produces more total pleasure.
行为功利主义直接评估每个具体行为，而规则功利主义则根据倾向于促进最大幸福的规则来评估行为。规则功利主义避免了行为功利主义的一些反直觉后果，例如当背信或惩罚无辜能产生更多总快乐时允许这些行为的含义。
9. Kantian Deontology | 康德义务论
Kant’s ethics is deontological, grounding morality in duty and reason rather than consequences. The only unconditionally good thing is a good will, which acts from duty, not mere inclination. An action has moral worth only if it is performed out of respect for the moral law, and the moral law is determined by the categorical imperative. The categorical imperative is not a hypothetical command dependent on desires, but an unconditional, rational demand.
康德的伦理学是义务论的，将道德奠基于义务与理性而非后果。唯一无条件的善是善良意志，它出于义务而非单纯偏好行动。一行为唯有出于对道德律的敬重而实施时才具有道德价值，而道德律由定言命令决定。定言命令不是依赖欲望的假言命令，而是一种无条件的理性要求。
The first formulation of the categorical imperative is the universal law formula: ‘Act only according to that maxim whereby you can at the same time will that it should become a universal law.’ A maxim is a subjective principle of action. We test maxims by envisaging their universalisation. If a maxim leads to a contradiction in conception (like making a false promise to gain advantage, which would undermine the institution of promising) or a contradiction in will (refusing to help others), then the act is impermissible. Perfect duties arise from contradictions in conception; imperfect duties from contradictions in will.
定言命令的第一个表述是普遍法则公式：“只依照你同时能够意愿其成为普遍法则的准则去行动。”准则是行动的主观原则。我们通过设想准则的普遍化来检验它们。如果一个准则导致概念上的矛盾（如为获利益而做虚假承诺，会破坏承诺制度）或意志上的矛盾（如拒绝帮助他人），则该行为被禁止。完全义务源自概念矛盾；不完全义务源自意志矛盾。
The second formulation, the humanity formula, commands: ‘Act in such a way that you treat humanity, whether in your own person or in the person of another, always at the same time as an end and never simply as a means.’ This enshrines the intrinsic dignity and rational autonomy of all persons, forbidding exploitation and demanding that we respect the rational agency of others.
第二表述，即人性公式，命令：“你要如此行动，以致无论是你的人格中的人性还是其他每个人的人格中的人性，你始终同时当作目的，而绝不仅仅当作手段来使用。”这彰显了所有位格的内在尊严与理性自律，禁止剥削，并要求尊重他人的理性主体性。
10. Aristotle’s Virtue Ethics | 亚里士多德的美德伦理学
Aristotle’s approach is agent-centred rather than act-centred. The ultimate goal of human life is eudaimonia, often translated as ‘flourishing’ or ‘well-being’, achieved through a life of rational activity in accordance with virtue. Virtues are stable character traits that enable a person to function excellently. Aristotle distinguishes intellectual virtues (developed through teaching) from moral virtues (developed through habit).
亚里士多德的路径以行为者为中心而非以行为为中心。人生的终极目标是 eudaimonia，常译为“繁盛”或“幸福”，通过合乎德性的理性活动的生活实现。德性是使人能卓越运作的稳定性格特质。亚里士多德区分了理智德性（通过教导形成）与道德德性（通过习惯养成）。
Each moral virtue is a mean between two vices: one of excess and one of deficiency. Courage, for example, is the mean between rashness and cowardice. The mean is not arithmetic but relative to the individual and the situation, determined by practical wisdom (phronesis). A virtuous person not only acts correctly but has the right feelings, intentions, and reasons for acting. Virtue ethics thus focuses on the whole life of the moral agent and the cultivation of character.
每种道德德性都是两个极端之间的中道：一方面是过度，一方面是不及。例如，勇气是鲁莽与怯懦的中道。中道不是算术的，而是相对于个体与情境而定，通过实践智慧（phronesis）判断。有德性的人不仅行动正确，还具有正确的感受、意图与行动理由。因此，美德伦理学关注道德行为者的完整生活与品格培养。
A standard criticism of virtue ethics is the problem of incompleteness: it does not provide clear rules for resolving moral dilemmas. Without a decision procedure like the categorical imperative or the utility calculus, it may be difficult to determine what the virtuous person would do in hard cases. Defenders argue that moral life is too complex to be captured by rigid rules and that cultivating practical wisdom is the only reliable guide.
对美德伦理学的一个标准批评是不完整性难题：它未提供解决道德困境的清晰规则。没有像定言命令或功利计算那样的决策程序，在困难案例中就难以确定有德性的人将如何行动。辩护者指出，道德生活过于复杂，难以被僵化规则涵盖，培育实践智慧才是唯一可靠的指南。
11. Meta-ethics: Cognitivism and Non-cognitivism | 元伦理学：认知主义与非认知主义
Meta-ethics examines the meaning and nature of moral language and properties. Cognitivism claims that moral statements express beliefs that are truth-apt (capable of being true or false). Moral naturalism (e.g., utilitarianism) holds that moral properties are identical to natural properties, such as pleasure. Moral non-naturalism (e.g., Moore’s intuitionism) holds that moral properties like ‘good’ are simple, non-natural properties known through intuition. Moore’s open question argument challenges any attempt to define ‘good’ in natural terms: we can always intelligibly ask ‘But is that good?’ of any natural identification.
元伦理学考察道德语言与道德属性的意义与本质。认知主义主张道德陈述表达可具有真值的信念（能判定真假）。道德自然主义（如功利主义）认为道德属性等同于自然属性，如快乐。道德非自然主义（如摩尔的直觉主义）则认为“善”这类道德属性是简单的、非自然的属性，通过直觉认知。摩尔的开放问题论证挑战了任何以自然术语定义“善”的尝试：对于任何自然等同，我们总能合乎情理地问“但那是善吗？”
Non-cognitivism denies that moral statements express beliefs. Emotivism (Ayer, Stevenson) claims that moral utterances express emotions or attitudes and aim to evoke similar feelings in others. ‘Stealing is wrong’ is akin to saying ‘Stealing – boo!’ with a tone of disapproval. Prescriptivism (Hare) holds that moral language prescribes actions; ‘Stealing is wrong’ means ‘Do not steal’ and implies a universal prescription for all relevantly similar situations. Non-cognitivism easily explains the motivational force of moral judgments, but faces challenges in accounting for moral reasoning and disagreement.
非认知主义否认道德陈述表达信念。情绪主义（艾耶尔、史蒂文森）主张道德话语表达情感或态度，并旨在唤起他人相似的情绪。“偷窃是错的”类似于以不赞成的语气说“偷窃——呸！”。规定主义（黑尔）认为道德语言规定行动；“偷窃是错的”意味着“不要偷窃”，并蕴含对所有相关相似情境的普遍规定。非认知主义轻松地解释了道德判断的推动力，但在解释道德推理与分歧时面临挑战。
12. Applied Ethics: Abortion and Euthanasia | 应用伦理学：堕胎与安乐死
Applied ethics puts moral theories to work on concrete issues. In the abortion debate, key concepts include personhood, the moral status of the foetus, and the rights of the mother. A conservative stance may argue that personhood begins at conception, making abortion morally equivalent to murder. More liberal views tie personhood to viability, consciousness, or birth. Judith Jarvis Thomson’s famous violinist analogy supports the permissibility of abortion even if the foetus is a person, by arguing that the right to life does not entail the right to use another person’s body without consent.
应用伦理学将道德理论运用于具体议题。在堕胎争论中，关键概念包括人格、胎儿的道德地位与母亲的权利。保守立场可能论证人格始于受孕，使堕胎道德上等同于谋杀。更自由的观点将人格与存活能力、意识或出生相联结。朱迪斯·贾维斯·汤姆森的著名小提琴家类比，通过论证生命权并不涵盖未经同意使用他人身体的权利，为即使胎儿是人也允许堕胎辩护。
The euthanasia debate distinguishes between active and passive euthanasia, as well as voluntary, non-voluntary, and involuntary forms. Slippery slope arguments caution that legalising voluntary euthanasia could lead to non-voluntary termination and a devaluing of vulnerable lives. A utilitarian might support assisted dying when it reduces net suffering and respects autonomous preferences, while a Kantian could argue that suicide or killing undercuts the rational agency that gives humans dignity. The doctrine of double effect permits the use of pain relief that may shorten life, provided the intention is to relieve suffering, not to cause death.
安乐死的辩论区分了主动与被动安乐死，以及自愿、非自愿和非本意的形式。滑坡论证警示，将自愿安乐死合法化可能导致非本意的终止生命及贬低弱势群体的生命价值。功利主义者可能在减少净痛苦并尊重自主偏好的情况下支持协助死亡，而康德主义者可能主张自杀或杀人会削弱赋予人类尊严的理性主体性。双重效应学说允许使用可能缩短生命的止痛法，只要意图是减轻痛苦而非导致死亡。
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