📚 KS3 Edexcel Philosophy Core Knowledge Review | KS3 Edexcel 哲学：核心知识点梳理
Philosophy is the love of wisdom, inviting you to ask big questions about existence, knowledge, values, reason, mind, and language. For KS3 Edexcel students, this article brings together the essential building blocks of philosophical thought. Each section pairs an English explanation with a Chinese translation, helping you master the core ideas and terminology while developing critical thinking skills.
哲学是对智慧的热爱，它邀请你去追问关于存在、知识、价值、理性、心灵与语言的重大问题。对 KS3 Edexcel 的学生来说，这篇文章汇总了哲学思维的必备基础。每一部分都提供英文讲解与中文翻译配对，帮助你在掌握核心概念和术语的同时，提升批判性思维能力。
1. What is Philosophy? | 什么是哲学？
Philosophy literally means ‘love of wisdom’ in Greek. It is not just a collection of old ideas, but an activity: the practice of questioning, analysing, and constructing arguments about the most fundamental aspects of reality. Philosophers examine concepts we often take for granted — like truth, justice, and beauty — and ask whether our beliefs about them are justified.
哲学在希腊语中字面意思为”爱智慧”。它不只是一堆古老的观念，更是一种活动：对现实最基本方面进行提问、分析和构建论证的实践。哲学家审视我们常常认为理所当然的概念——比如真理、正义和美——并追问我们对这些事物的信念是否合理。
At KS3, philosophy encourages you to move beyond simply stating opinions. You learn to give reasons, spot weak arguments, and respect different viewpoints. The subject is divided into branches such as epistemology (the study of knowledge), ethics (the study of right and wrong), metaphysics (the study of reality), and logic (the study of correct reasoning). Understanding these branches gives you a map of philosophical inquiry.
在 KS3 阶段，哲学鼓励你超越简单发表观点的层次。你学会给出理由，识别薄弱论证，并尊重不同视角。这门学科分为若干分支，如认识论（关于知识的研究）、伦理学（关于对错的研究）、形而上学（关于实在的研究）和逻辑学（关于正确推理的研究）。理解这些分支为你提供了一张哲学探究的地图。
2. Logic and Argument | 逻辑与论证
At the heart of philosophy lies the ability to construct and evaluate arguments. An argument is a set of statements where some statements (premises) are intended to support another statement (the conclusion). A valid argument is one where if the premises are true, the conclusion must be true. A sound argument is valid and has all true premises.
哲学的核心在于构建和评估论证的能力。一个论证是一组陈述，其中某些陈述（前提）旨在支持另一个陈述（结论）。一个有效的论证是指：如果前提为真，结论必然为真。一个可靠的论证既是有效的，且所有前提皆为真。
You also need to recognise common fallacies — errors in reasoning that weaken an argument. Examples include ‘ad hominem’ (attacking the person rather than the argument), ‘straw man’ (misrepresenting an opponent’s view to make it easier to attack), and ‘false dilemma’ (presenting only two options when more exist). Spotting these helps you think more clearly.
你还需要识别常见的谬误——削弱论证的推理错误。比如”人身攻击”（攻击个人而非论证）、”稻草人谬误”（歪曲对方观点以使其更容易被攻击）和”假两难谬误”（只呈现两个选项而实际上存在更多）。识别这些谬误有助于你更清晰地思考。
- Premise 前提 – a reason given in support of a conclusion.
- 前提 – 为支持结论而给出的理由。
- Conclusion 结论 – the statement that the argument is trying to prove.
- 结论 – 论证试图证明的陈述。
- Validity 有效性 – about the logical structure; if premises true, conclusion must be true.
- 有效性 – 关乎逻辑结构；若前提真，结论必真。
- Soundness 可靠性 – a valid argument with all true premises.
- 可靠性 – 前提全部为真的有效论证。
3. Socrates and Critical Thinking | 苏格拉底与批判性思维
Socrates (c. 470–399 BCE) is often called the father of Western philosophy. He did not write books; instead, we know him through the works of his student Plato. Socrates used a method of questioning now known as the Socratic method. He would ask people to define a concept like ‘courage’ and then show through further questioning that their initial definitions were inadequate.
苏格拉底（约公元前 470–399 年）常被称为西方哲学之父。他没有著书立说，我们是通过他学生柏拉图的著作了解他的。苏格拉底使用现在被称为苏格拉底式提问法的方法。他会要求人们定义一个概念，如”勇气”，然后通过深入追问揭示他们最初的定义是不充分的。
This process encourages critical thinking and intellectual humility. Socrates famously claimed that he was wise only because he knew that he knew nothing. His approach teaches us to examine our own beliefs, challenge assumptions, and seek clearer understanding. The Socratic method remains a powerful tool in classrooms today.
这一过程鼓励批判性思维和智识上的谦逊。苏格拉底有一句著名的话：他之所以有智慧，是因为他知道自己一无所知。他的方法教导我们要审视自己的信念，挑战假设，追求更清晰的理解。苏格拉底式方法至今仍是课堂中的有力工具。
4. Plato’s Theory of Forms | 柏拉图的理型论
Plato (c. 428–348 BCE) developed the Theory of Forms to explain the nature of reality. He argued that the world we see around us is not the most real world. True reality consists of perfect, unchangeable Forms (or Ideas) — abstract entities like Justice itself, Beauty itself, and the Form of the Good. Physical objects are merely imperfect copies or shadows of these Forms.
柏拉图（约公元前 428–348 年）发展出理型论（相论）来解释实在的本质。他认为我们周围可见的世界并非最真实的世界。真正的实在由完美、不变的理念（或理型）构成——诸如正义本身、美本身和”善的理型”等抽象实体。具体事物只是这些理型的残缺摹本或影子。
Plato illustrates this with the Allegory of the Cave. Prisoners chained in a cave see only shadows on the wall and mistake them for reality. The philosopher, like a prisoner freed and stepping into the sunlight, perceives the Forms and understands the true source of the shadows. This allegory highlights the journey from ignorance to wisdom.
柏拉图用”洞穴寓言”来说明这一点。锁在洞穴中的囚徒只看到墙上的影子，并误以为那就是现实。哲学家就像挣脱枷锁走出洞穴、走入阳光的囚徒，看到了理型，并理解影子的真正来源。这个寓言描绘了从无知到智慧的旅程。
5. Aristotle’s Ethics | 亚里士多德的伦理学
Aristotle (384–322 BCE), a student of Plato, took a more practical approach. For Aristotle, the highest good for human beings is eudaimonia, often translated as ‘flourishing’ or ‘happiness’, but it is not a fleeting feeling. It is achieved by living a life of virtue guided by reason. Virtue, for Aristotle, is a mean between two extremes (the doctrine of the golden mean).
亚里士多德（公元前 384–322 年）是柏拉图的学生，他采取了一种更实际的方法。对亚里士多德而言，人类的最高善是 eudaimonia，常译为”繁荣”或”幸福”，但它并非一种短暂的感觉。它通过依照理性过一种有德性的生活来实现。在亚里士多德看来，德性是两个极端之间的中道（中庸之道）。
For example, the virtue of courage lies between the vice of cowardice (deficiency) and the vice of recklessness (excess). Unlike Plato, Aristotle believed we learn virtue through habit and practice, not just by contemplating Forms. His virtue ethics focuses on the kind of person we should become.
例如，勇敢这种德性就处于怯懦（不足）和鲁莽（过度）这两种恶之间。与柏拉图不同，亚里士多德认为我们通过习惯和实践来习得德性，而不仅仅通过沉思理型。他的德性伦理学关注我们应该成为什么样的人。
| Vice of Deficiency 不足之恶 | Virtue (Mean) 德性（中道） | Vice of Excess 过度之恶 |
| Cowardice 怯懦 | Courage 勇敢 | Recklessness 鲁莽 |
| Stinginess 吝啬 | Generosity 慷慨 | Wastefulness 挥霍 |
6. Descartes and Skepticism | 笛卡尔与怀疑论
Rene Descartes (1596–1650) is famous for his method of radical doubt. He wanted to find a foundation of knowledge that could not be doubted. He imagined an evil demon that could deceive him about everything — even mathematics. In the end, he concluded that even if he was being deceived, he must exist as a thinking thing. This is captured in the phrase ‘Cogito, ergo sum’ — ‘I think, therefore I am.’
勒内·笛卡尔（1596–1650）以其彻底怀疑的方法而闻名。他想找到一个无法被怀疑的知识基础。他想象有一个邪恶的魔鬼可能在所有事情上欺骗他——甚至包括数学。最终他得出结论：即使他被欺骗，作为一个正在思维的东西，他也必然存在。这凝结为一句名言：”我思故我在”（Cogito, ergo sum）。
Descartes is a foundationalist: he believes knowledge must be built on certain, indubitable foundations. His mind-body dualism claims that the mind and body are two distinct substances: the mind is non-physical and thinking, while the body is physical and extended. This raises important questions about how they interact.
笛卡尔是一位基础主义者：他相信知识必须建立在确实无疑的基础上。他的心身二元论主张心灵和身体是两种不同的实体：心灵是非物质的、能思的，而身体是物质的、具有广延的。这就引发了关于二者如何交互的重要问题。
7. Hume and Empiricism | 休谟与经验主义
David Hume (1711–1776) was a Scottish empiricist who argued that all knowledge comes from sensory experience. He distinguished between ‘impressions’ (vivid, immediate sensations) and ‘ideas’ (faint copies of impressions in thought). For Hume, any claim not based on experience should be ‘committed to the flames.’
大卫·休谟（1711–1776）是一位苏格兰经验主义者，他主张所有知识都来自感官经验。他区分了”印象”（鲜活、直接的感觉）和”观念”（思维中对印象的模糊复制）。对休谟而言，任何不基于经验的主张都应该”付之一炬”。
Hume was also sceptical about causation. We never directly perceive a necessary connection between cause and effect; we only observe one event following another. The idea of necessary connection comes from custom or habit. This challenges the rationalist belief that we can know cause-effect relationships through reason alone. Hume also argued that you cannot derive an ‘ought’ from an ‘is’, meaning factual statements cannot logically lead to moral conclusions.
休谟对因果关系也持怀疑态度。我们从未直接感知到因果之间的必然联系；我们只观察到一个事件跟随另一个事件。必然联系的观念来自习惯或习性。这挑战了理性主义者认为我们可以仅凭理性认识因果关系的信念。休谟还主张不能从”是”推出”应当”，这意味着事实陈述不能在逻辑上导出道德结论。
8. Kant’s Moral Philosophy | 康德的道德哲学
Immanuel Kant (1724–1804) proposed a deontological ethical system based on duty. He argued that the moral worth of an action lies not in its consequences but in whether it is done from duty and in accordance with a rational principle. He called this principle the Categorical Imperative.
伊曼努尔·康德（1724–1804）提出了一种以义务为基础的义务论伦理学体系。他主张一个行为的道德价值不在于其后果，而在于它是否出于义务并符合理性原则。他将这一原则称为定言令式（绝对命令）。
One formulation of the Categorical Imperative is: ‘Act only according to that maxim whereby you can at the same time will that it should become a universal law.’ This means you should only do something if you could rationally will that everyone else do it too. Another formulation tells us to treat humanity never merely as a means to an end, but always also as an end in itself. This emphasises respect for persons.
定言令式的一种表述是：”只依据那些你可以同时愿意它成为普遍法则的准则去行动。”这意味着只有在你能够理性地愿意所有其他人也都这样做的情况下，你才应该做这件事。另一种表述告诉我们，永远不要把人仅仅当作手段，而总要同时当作目的本身。这强调了对他人的尊重。
9. Epistemology: What is Knowledge? | 认识论：什么是知识？
Epistemology asks what knowledge is and how we acquire it. The traditional definition is that knowledge is justified true belief (JTB). For a person S to know a proposition P, three conditions must be met: (1) P is true; (2) S believes that P; (3) S is justified in believing that P.
认识论追问什么是知识以及我们如何获得知识。传统的定义是：知识是经过辩护的真信念（JTB）。对一个人 S 来说，要知道一个命题 P，必须满足三个条件：(1) P 是真的；(2) S 相信 P；(3) S 相信 P 是有辩护理由的。
This definition was challenged by Edmund Gettier in 1963. He presented cases where someone has a justified true belief that seems to be true only by luck, so we would not call it knowledge. For example, you might see a clock that shows the correct time, but unknown to you the clock stopped exactly 24 hours ago. Your belief is justified and true, but it is not knowledge. This has led philosophers to refine the definition, perhaps by adding a ‘no false lemmas’ condition or requiring a causal connection.
这个定义在 1963 年受到爱德蒙·盖提尔的挑战。他提出了一些案例：某人拥有一个经过辩护的真信念，但似乎只是凭运气为真，我们不会称之为知识。例如，你看到一个钟显示了正确时间，但你不知道这个钟正好在 24 小时前停掉了。你的信念是经过辩护且为真的，但它并非知识。这促使哲学家们改进定义，例如增加”没有依赖错误前提”的条件，或要求因果联系。
10. Philosophy of Religion: Arguments for God’s Existence | 宗教哲学：上帝存在的论证
Philosophy of religion examines arguments for and against the existence of God. The Teleological Argument (Design Argument) observes the apparent order and purpose in the universe and concludes that a designer must exist. William Paley used the watch analogy: if you find a watch, its complexity suggests a watchmaker; so too the universe suggests a divine designer.
宗教哲学审查支持与反对上帝存在的论证。目的论论证（设计论证）观察到宇宙中显见的秩序和目的，得出结论一定存在一位设计者。威廉·佩利使用手表类比：如果你捡到一块手表，其复杂性暗示了钟表匠的存在；同样，宇宙也暗示了一位神圣的设计者。
In contrast, the Problem of Evil challenges the existence of an all-powerful, all-loving God. If God is all-powerful, he could prevent evil; if all-loving, he would want to prevent evil; yet evil exists. This is often called the inconsistent triad. Some responses argue that evil is necessary for free will, or that it helps us grow morally (soul-making theodicy). These debates sharpen your ability to weigh evidence and construct counter-arguments.
与此相对，恶的问题挑战了全能、全善的上帝的存在。如果上帝全能，他就能阻止恶；如果全善，他就会想要阻止恶；然而恶仍然存在。这常被称为”不一致三元组”。一些回应认为，恶是自由意志所必需的，或者恶帮助我们道德成长（灵魂塑造神正论）。这些辩论能磨炼你权衡证据和构建反驳论证的能力。
11. Free Will and Determinism | 自由意志与决定论
Do we have free will, or is everything determined by prior causes? Determinism claims that every event, including human actions, is the inevitable result of preceding events and the laws of nature. If determinism is true, it seems we cannot be held morally responsible for our actions, since we could not have done otherwise.
我们拥有自由意志吗，还是一切都由先前的原因决定？决定论声称每一个事件，包括人类行为，都是先前事件和自然规律的必然结果。如果决定论为真，似乎我们无法为自己的行为承担道德责任，因为当时我们不可能做出别样的行动。
The compatibilist view holds that free will and determinism can coexist. Compatibilists redefine free will as the ability to act according to one’s desires without external coercion. In contrast, incompatibilists argue that if determinism is true, free will is an illusion. Libertarians (in the metaphysical sense) believe we do have free will and that determinism is false. This topic encourages logical clarity about definitions and responsibility.
相容论的观点认为自由意志和决定论可以共存。相容论者将自由意志重新定义为：能够按照自己的欲望行动而不受外部强制。相反，不相容论者主张，如果决定论为真，自由意志就是幻觉。自由意志论者（形而上学意义上）相信我们确实拥有自由意志，且决定论为假。这个主题促进了对定义和责任的清晰逻辑思考。
12. Ethics: Utilitarianism vs Deontology | 伦理学：功利主义与义务论
Two major ethical theories often appear in KS3 philosophy: utilitarianism and deontology. Utilitarianism, associated with Jeremy Bentham and John Stuart Mill, is a consequentialist theory: the right action is the one that maximises overall happiness or pleasure and minimises pain. It employs the Greatest Happiness Principle.
在 KS3 哲学中经常出现两大伦理学理论：功利主义和义务论。功利主义与杰里米·边沁和约翰·斯图尔特·密尔相关，是一种后果论理论：正确的行为是能最大化整体幸福或快乐、最小化痛苦的行为。它运用最大幸福原则。
Deontology, by contrast, focuses on duty and rules rather than outcomes. Kant’s ethics is a key example. For a deontologist, certain actions (like lying or killing) are intrinsically wrong, regardless of the consequences. While utilitarianism asks ‘What will produce the best results?’, deontology asks ‘What is my duty?’ or ‘Can this action be universalised?’ Comparing these theories helps you think about the basis of moral decisions.
与之相反，义务论关注的是义务和规则，而非结果。康德的伦理学就是一个典型例子。对义务论者而言，某些行为（如撒谎或杀人）本身就内在是错误的，不论后果如何。功利主义问”什么会产生最好的结果？”，而义务论问”我的义务是什么？”或”这个行为能否被普遍化？”比较这些理论有助于你思考道德决定的基础。
Published by TutorHao | Philosophy Revision Series | aleveler.com
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