📚 Year 9 Cambridge Philosophy: Core Knowledge Points | 剑桥九年级哲学：核心知识点梳理
This article provides a structured overview of the fundamental topics in Year 9 Cambridge philosophy. Whether you are preparing for an end-of-year assessment or building a strong foundation for IGCSE Philosophy, these core knowledge points will help you grasp key concepts, arguments, and philosophical methods. Each section pairs English explanations with Chinese translations to support bilingual learners. Let us explore the fascinating world of philosophy together.
本文系统梳理了剑桥九年级哲学课程的核心知识点。无论你是在准备年终评估，还是为 IGCSE 哲学打下坚实基础，这些核心知识点都能帮助你掌握关键概念、论证和哲学方法。每个部分均提供中英双语解释，支持双语学习者。让我们一起探索迷人的哲学世界。
1. What is Philosophy? | 什么是哲学？
Philosophy comes from the Greek words ‘philo’ (love) and ‘sophia’ (wisdom), meaning the love of wisdom. It is the systematic attempt to answer fundamental questions about reality, existence, knowledge, values, reason, and the mind. Instead of relying on faith, tradition, or authority, philosophy uses reason, logical argument, and critical questioning to seek the truth. Famous philosophers such as Socrates, Plato, and Aristotle laid the foundations of Western philosophy by asking questions like ‘What is justice?’, ‘What can we know?’, and ‘How should we live?’.
哲学一词源自希腊语 ‘philo’（爱）与 ‘sophia’（智慧），意为对智慧的热爱。它试图系统地回答关于实在、存在、知识、价值、理性和心灵的根本问题。哲学不依赖于信仰、传统或权威，而是运用理性、逻辑论证和批判性质疑来寻求真理。苏格拉底、柏拉图和亚里士多德等著名哲学家奠定了西方哲学的基础，他们提出的问题包括 ‘什么是正义？’、’我们能知道什么？’ 以及 ‘我们该如何生活？’。
In the Cambridge curriculum, philosophy encourages you to think independently, evaluate diverse viewpoints, and construct well-reasoned arguments. You will study core branches of philosophy: epistemology (the theory of knowledge), metaphysics (the study of reality), ethics (moral philosophy), political philosophy, philosophy of religion, and more. Understanding what philosophy is prepares you to engage with timeless questions that still matter today.
在剑桥课程中，哲学鼓励你独立思考、评估不同观点并构建有理有据的论证。你将学习哲学的核心分支：认识论（知识理论）、形而上学（实在研究）、伦理学（道德哲学）、政治哲学、宗教哲学等。理解什么是哲学，能让你探讨那些至今仍很重要的永恒问题。
2. Arguments and Critical Thinking | 论证与批判性思维
An argument in philosophy is not a quarrel; it is a set of statements where one or more premises are offered to support a conclusion. A good argument must have true or acceptable premises and a logical structure. There are two main types of reasoning: deductive and inductive. In deductive reasoning, if the premises are true, the conclusion must be true. For example: ‘All humans are mortal. Socrates is human. Therefore, Socrates is mortal.’ This is a valid deductive argument.
哲学中的论证不是争吵，而是一组陈述，其中一个或多个前提被用来支持一个结论。一个好的论证必须具有真实或可接受的前提以及合乎逻辑的结构。推理主要有两种类型：演绎推理和归纳推理。在演绎推理中，如果前提为真，结论必然为真。例如：’所有人都会死。苏格拉底是人。因此，苏格拉底会死。’ 这是一个有效的演绎论证。
Inductive reasoning, on the other hand, makes a probable conclusion based on evidence. For instance: ‘The sun has risen every day in recorded history. Therefore, the sun will rise tomorrow.’ Inductive arguments are not logically certain but can be strong or weak depending on the evidence. Philosophers also identify common fallacies such as ad hominem (attacking the person), straw man (misrepresenting an argument), and false dilemma (presenting only two options when more exist). Recognizing these fallacies improves your critical thinking skills.
另一方面，归纳推理基于证据得出可能的结论。例如：’有历史记载以来，太阳每天都会升起。因此，明天太阳也会升起。’ 归纳论证在逻辑上并非必然，但其强弱取决于证据。哲学家还会识别常见谬误，例如人身攻击（攻击对方人格）、稻草人谬误（歪曲对方论点）和假两难（只给出两个选项，而实际上更多）。识别这些谬误可以提高你的批判性思维能力。
In Year 9, you will practise constructing, analysing, and evaluating arguments. Always ask: Are the premises true? Does the conclusion follow from the premises? Are there any hidden assumptions? These skills are fundamental to philosophical inquiry.
在九年级，你将练习构建、分析和评价论证。始终要问：前提是否真实？结论是否由前提推导而来？是否存在隐含假设？这些技能是哲学探究的基础。
3. Epistemology: Nature of Knowledge | 认识论：知识的本质
Epistemology asks: What is knowledge? What can we know, and how do we know it? The traditional definition of knowledge is ‘justified true belief’ (JTB). For example, you know that Paris is the capital of France if you believe it, it is true, and you have good justification (such as reliable sources). However, this definition was challenged by the philosopher Edmund Gettier, who provided counterexamples where someone has a justified true belief but still seems to lack knowledge. These are called Gettier cases.
认识论追问：什么是知识？我们能知道什么？我们如何知道？知识的传统定义是 ‘确证的真信念’（JTB）。例如，你知道巴黎是法国的首都，因为你相信它、它是真的，而且你有充分的理由证成（比如可靠的来源）。然而，这一定义受到哲学家埃德蒙德·盖蒂尔的挑战，他给出了一些反例，在这些反例中，某人持有确证的真信念，但仍然缺乏知识。这些被称为盖蒂尔问题。
Philosophers also distinguish between a priori knowledge (independent of experience, such as mathematical truths) and a posteriori knowledge (dependent on experience, such as scientific observations). Rationalists like René Descartes argued that reason is the primary source of knowledge, while empiricists like John Locke claimed that all knowledge comes from sensory experience. Another key debate is between realism (the world exists independently of our minds) and idealism (reality is fundamentally mental). These debates show that even basic concepts like knowledge are contested.
哲学家还区分了先验知识（独立于经验，比如数学真理）和后验知识（依赖于经验，比如科学观察）。理性主义者如勒内·笛卡尔主张理性是知识的主要来源，而经验主义者如约翰·洛克则声称一切知识都来自感官经验。另一关键争论是实在论（世界独立于我们的心灵而存在）与观念论（实在根本上是精神的）之间的分歧。这些争论表明，即便是知识这样的基本概念也备受争议。
4. The Mind-Body Problem | 身心问题
The mind-body problem asks: What is the relationship between the mind and the body? Are they separate substances, or is the mind just a physical process of the brain? Dualism, famously defended by Descartes, holds that the mind is a non-physical substance distinct from the body. Descartes argued, ‘I think, therefore I am’ (cogito ergo sum), claiming that while he could doubt the existence of his body, he could not doubt the existence of his thinking self. This suggests that the mind and body are separate entities.
身心问题追问：心灵与身体之间是什么关系？它们是两种不同的实体，还是心灵只是大脑的物理过程？笛卡尔所捍卫的二元论认为，心灵是一种不同于身体的非物质实体。笛卡尔论证道：’我思故我在’（cogito ergo sum），他指出，自己可以怀疑身体的存在，却不能怀疑思考中的自我的存在。这暗示心灵与身体是分离的实体。
Materialism (or physicalism) rejects dualism and argues that mental states are identical to brain states. For example, the feeling of pain is nothing over and above certain neural activity. An intermediate position is property dualism, which accepts that the brain is physical but claims that mental properties are non-physical and cannot be reduced to physical descriptions. The problem of consciousness—how subjective experience arises from objective brain processes—remains a central philosophical and scientific puzzle.
唯物主义（或物理主义）反对二元论，主张心理状态等同于大脑状态。例如，疼痛感无非就是某种神经活动。一个中间立场是属性二元论，它承认大脑是物理的，但主张心理属性是非物理的，无法还原为物理描述。意识问题——主观经验如何从客观的脑过程中产生——至今仍是哲学和科学的核心难题。
5. Personal Identity | 个人同一性
What makes you the same person over time? The problem of personal identity addresses how we can be the same individual despite physical and psychological changes. One approach is the body theory: you are identical to your living human body, so you remain the same as long as your body continues. But this faces difficulties: if you lose a limb or undergo organ transplantation, do you become a different person? Most would say no.
是什么让你在时间中保持为同一个人？个人同一性问题涉及的是，尽管我们经历了身体和心理的变化，我们如何仍然是同一个人。一种进路是身体理论：你等同于你活着的身体，因此只要身体持续存在，你就保持为同一个人。但这面临困难：如果你失去一条腿或接受器官移植，你会变成另一个人吗？大多数人会认为不会。
The psychological continuity theory, associated with John Locke, claims that personal identity is based on memory and psychological traits. You are the same person as the younger you because you remember those past experiences and your personality is connected. However, thought experiments like the ‘teletransporter’ (which destroys your original body and recreates a perfect copy elsewhere) challenge this view: is the copy you? These debates force us to clarify what truly matters for survival and selfhood.
与约翰·洛克相关的心理连续性理论主张，个人同一性基于记忆和心理特质。你与年幼的你是同一个人，因为你记得那些过往经历，且人格是相连的。然而，像 ‘远程传送器’ 这样的思想实验（它摧毁你的原身体并在别处完美复制一个你）挑战了这一观点：那个复制品是你吗？这些争论迫使我们去澄清什么对于持存和自我来说才是真正重要的。
6. Free Will and Determinism | 自由意志与决定论
Do we have free will, or are all our actions determined by prior causes? Determinism is the view that every event, including human decisions, is the inevitable result of preceding causes. If determinism is true, it seems we cannot be held morally responsible for our actions, since we could not have done otherwise. Free will, by contrast, is the ability to choose and act without external constraint.
我们拥有自由意志吗，还是我们的所有行为都由先前的原因所决定？决定论认为，每一个事件，包括人的决定，都是先前原因的必然结果。如果决定论为真，那么我们似乎无法为自己的行为承担道德责任，因为我们本不可能做出别的选择。相比之下，自由意志是不受外界强制而进行选择和行动的能力。
Hard determinists accept determinism and deny free will. Libertarians (in metaphysics, not politics) assert that we do have free will and that determinism is false—some events are genuinely undetermined. Compatibilists like David Hume argue that free will and determinism are compatible: we are free as long as we can act according to our desires, even if those desires are determined. The debate is important for ethics, law, and our understanding of human agency. In philosophy, you will also encounter the concept of moral responsibility and how it relates to free will.
强硬决定论者接受决定论并否认自由意志。自由意志论者（指形而上学而非政治意义上）则断言我们确实拥有自由意志，而决定论是错误的——有些事件确实是非决定的。相容论者比如大卫·休谟论证说，自由意志与决定论是相容的：只要我们能按照自身欲望行动，我们就是自由的，即使那些欲望是被决定的。这一争论对伦理学、法律和对人的能动性的理解都很重要。在哲学中，你还会遇到道德责任的概念及其与自由意志的关系。
7. Ethics: Theories of Right Action | 伦理学：正确行为的理论
Ethics is about how we should live and what actions are right or wrong. Normative ethics proposes theories to guide our behaviour. Consequentialism holds that the rightness of an action depends solely on its outcomes. The most famous version, utilitarianism (Jeremy Bentham, John Stuart Mill), states that we should act to produce the greatest happiness for the greatest number. For example, if telling a white lie prevents someone’s hurt and harms no one, a utilitarian might consider it right.
伦理学关乎我们应当如何生活以及什么是正当或不正当的行为。规范伦理学提出理论来指导我们的行为。后果论认为，一个行为的对错仅取决于其后果。最著名的版本，功利主义（杰里米·边沁、约翰·斯图亚特·密尔）主张，我们应当追求最大多数人的最大幸福。例如，如果说一个善意的谎言能避免伤害他人且不损害任何人，功利主义者可能会认为那是正当的。
Deontology (Immanuel Kant) contrasts with consequentialism: some actions are right or wrong in themselves, regardless of consequences. Kant’s categorical imperative demands that we act only according to rules that could become universal laws, and that we treat people as ends in themselves, never merely as means. Virtue ethics (Aristotle) focuses not on rules or consequences but on the character of the moral agent. A virtuous person cultivates traits like courage, honesty, and compassion, and does the right thing out of habit. These three approaches—consequentialism, deontology, and virtue ethics—form the core of moral philosophy studied at this level.
义务论（伊曼努尔·康德）则与后果论相反：某些行为本身就对或错，与后果无关。康德的定言命令要求，我们只依据能成为普遍法则的准则而行动，并且要始终把人当作目的本身，而不仅仅是手段。德性伦理学（亚里士多德）关注的不是规则或后果，而是道德主体的品格。一个有德性的人培养勇气、诚实和同情等品质，并出于习惯做正当之事。这三种进路——后果论、义务论和德性伦理学——构成了这一阶段所研究的道德哲学核心。
8. Political Philosophy: Justice and Authority | 政治哲学：正义与权威
Political philosophy examines the nature of justice, the legitimacy of government, and the rights of individuals. One foundational question is: Why should we obey the state? Thomas Hobbes argued that without a powerful sovereign, life would be ‘solitary, poor, nasty, brutish, and short’ in the state of nature. We enter a social contract, giving up some freedom in exchange for security. John Locke, however, believed that government must protect natural rights to life, liberty, and property, and citizens have a right to revolution if it fails.
政治哲学考察正义的本质、政府的正当性以及个体的权利。一个根本问题是：我们为什么要服从国家？托马斯·霍布斯论证说，如果没有一个强大的主权者，在自然状态下生活将会 ‘孤独、贫困、卑污、残忍而短寿’。我们订立社会契约，放弃部分自由以换取安全。然而，约翰·洛克认为，政府必须保护生命、自由和财产这些自然权利，如果政府未能做到，公民有权革命。
Modern political philosophy often centres on justice as fairness, most famously articulated by John Rawls. Rawls proposes the ‘veil of ignorance’: imagine you know nothing about your own social position, talents, or gender; from that position, you would choose principles that ensure equal basic liberties and allow inequalities only if they benefit the least advantaged. This thought experiment is widely used to discuss distributive justice. Debates about equality, liberty, and the role of the state remain central in philosophy and real-world politics.
现代政治哲学常以作为公平的正义为核心，其最著名的阐述者当属约翰·罗尔斯。罗尔斯提出了 ‘无知之幕’：想象你对自己的社会地位、才能或性别一无所知；从这一立场出发，你会选择那些确保平等基本自由、并且只允许能够惠及最不利者的不平等的原则。这一思想实验被广泛用于讨论分配正义。关于平等、自由和国家角色的争论，仍是哲学和现实政治的核心议题。
9. Philosophy of Religion: The Existence of God | 宗教哲学：上帝的存在
Philosophy of religion uses reason to examine religious claims, particularly the existence of God. The ontological argument, proposed by Anselm, defines God as ‘that than which nothing greater can be conceived’ and argues that such a being must exist in reality, because existing in reality is greater than existing merely in the mind. Although elegant, this argument is contested by critics who claim existence is not a property that can be added to a definition.
宗教哲学运用理性来审视宗教主张，尤其是上帝的存在问题。由安瑟尔谟提出的本体论论证将上帝定义为 ‘无法设想比之更伟大的存在者’，并论证说，这样一个存在者必然在现实中存在，因为存在于现实比仅仅存在于心灵中更伟大。该论证虽然精巧，却受到批评者的质疑，他们认为存在并不是可以添加给定义的属性。
The teleological argument (design argument) points to the apparent order and purpose in nature as evidence for an intelligent designer. William Paley’s watchmaker analogy: if you find a watch, you infer a watchmaker; likewise, the complexity of the universe implies a designer. The cosmological argument, such as Thomas Aquinas’s ‘Five Ways’, claims that everything has a cause, and there must be an uncaused first cause (God). These arguments and their criticisms (e.g., from David Hume and evolutionary theory) are classic topics in philosophy.
目的论论证（设计论证）指出，自然界中显现的秩序和目的可以视为一位智能设计者的证据。威廉·佩利的钟表匠类比是：如果你发现一块表，你会推断存在一位制表匠；同样，宇宙的复杂性暗示着一位设计者。宇宙论论证，例如托马斯·阿奎那的 ‘五路论证’，则声称凡事皆有因，因此必有一个无因的第一因（上帝）。这些论证及其批评（如来自大卫·休谟和进化论的批评）是哲学的经典议题。
10. The Problem of Evil | 恶的问题
If God is all-powerful (omnipotent), all-knowing (omniscient), and perfectly good (omnibenevolent), why does evil exist? The logical problem of evil argues that the coexistence of such a God and evil is contradictory. If God could prevent evil but does not, he is not all-good; if he wants to but cannot, he is not all-powerful. The evidential problem of evil focuses on the sheer amount and distribution of suffering, which seems to count against a loving God.
如果上帝是全能的、全知的且全善的，那么恶为何存在？恶的逻辑问题论证说，这样的上帝与恶的共存是矛盾的。如果上帝能够阻止恶却没有这样做，他就不是全善的；如果他想要阻止却做不到，他就不是全能的。恶的证据问题则聚焦于苦难的巨大数量和分布，这似乎反驳了一位慈爱的上帝的存在。
Theodicies are attempts to justify God’s permission of evil. The free will defence argues that moral evil results from the misuse of free will, which is a greater good that God wanted to create. The soul-making theodicy (Irenaeus, John Hick) suggests that suffering helps us develop virtues and grow into morally mature beings. While these responses offer possible explanations, the problem of evil remains a powerful objection and stimulates deep reflection on the nature of God and suffering.
神义论是为上帝容许恶的存在所做的辩护尝试。自由意志辩护认为，道德之恶源于对自由意志的滥用，而自由意志是上帝希望创造的更大善好。灵魂塑造神义论（伊里奈乌、约翰·希克）则提出，苦难帮助我们培养德性并成长为道德成熟的存有。尽管这些回应提供了可能的解释，恶的问题依然是一个强有力的反驳，并激发着对上帝与苦难本质的深层反思。
11. Aesthetics: What is Art? | 美学：什么是艺术？
Aesthetics is the branch of philosophy that examines beauty, art, and taste. One central question is: What makes something a work of art? Traditionally, art was defined by representation and beauty, but modern art has challenged these notions. The institutional theory claims that an object is art if it is accepted by the ‘artworld’ (critics, galleries, artists). Others argue that art is defined by its expressive or emotional qualities.
美学是哲学的一个分支，研究美、艺术和品味。一个核心问题是：是什么使某物成为一件艺术品？传统上，艺术由再现和美来定义，但现代艺术挑战了这些观念。体制理论声称，如果一个对象被 ‘艺术界’（批评家、画廊、艺术家）接受，它就是艺术。另一些人主张艺术由其表现性或情感性特质来定义。
Aesthetic experience involves a special kind of perception where we appreciate something for its own sake, not for its practical use. The debate between objectivism (beauty is a real property of objects) and subjectivism (beauty is in the eye of the beholder) is lively. Philosophers also explore the role of the artist’s intention, the importance of originality, and whether art can be morally evaluated. These discussions foster appreciation for diverse artistic expressions.
审美经验涉及一种特殊的感知方式，我们欣赏某物是因其自身之故，而非因其实际用途。客观主义（美是对象的真实属性）与主观主义（美在观者眼中）之间的争论非常活跃。哲学家还探讨了艺术家意图的作用、原创性的重要性，以及艺术是否可以接受道德评价。这些讨论增进了对不同艺术表现形式的欣赏。
12. Philosophical Skills: Analysis and Evaluation | 哲学技能：分析与评价
To succeed in Cambridge philosophy, you need to develop specific skills. Analysis involves breaking down arguments into their component parts, identifying premises and conclusions, and clarifying the meanings of key terms. Evaluation requires you to assess whether an argument is valid or strong, whether the premises are plausible, and whether there are counterexamples or hidden assumptions. You should be able to compare different viewpoints and form balanced judgments.
要在剑桥哲学中取得成功，你需要培养特定的技能。分析是指将论证分解为各个组成部分，识别前提与结论，并澄清关键术语的含义。评价则要求你评估一个论证是否有效或有力、前提是否合理、是否存在反例或隐含假设。你应当能够比较不同观点并形成平衡的判断。
A useful tool is the structure of philosophical writing: state the issue, present the argument, explain the reasoning, consider objections, and draw a reasoned conclusion. Dialogue and Socratic questioning—asking ‘What do you mean by that?’ and ‘What follows from that?’—are central methods. In assessments, you may be asked to explain philosophical ideas, compare perspectives, or construct your own arguments. Regular practice in writing short essays and engaging in class discussion will strengthen these abilities and deepen your understanding.
一个有用的工具是哲学写作的结构：陈述议题、展示论证、解释推理、考虑反对意见，并得出一个有理由的结论。对话与苏格拉底式提问——追问 ‘你那样说是什么意思？’ 和 ‘由此能推出什么？’——是核心方法。在评估中，你可能会被要求解释哲学观念、比较不同视角或构建自己的论证。经常练习短文写作并参与课堂讨论，将增强这些能力并加深你的理解。
Published by TutorHao | Philosophy Revision Series | aleveler.com
更多咨询请联系16621398022（同微信）
屏轩国际教育cambridge primary/secondary checkpoint, cat4, ukiset,ukcat,igcse,alevel,PAT,STEP,MAT, ibdp,ap,ssat,sat,sat2课程辅导，国外大学本科硕士研究生博士课程论文辅导