📚 Year 9 CIE Philosophy: Core Knowledge Review | Year 9 CIE 哲学：核心知识点梳理
Welcome to the fascinating world of philosophy! This article covers the core topics typically encountered in a Year 9 CIE Philosophy course. Philosophy encourages you to think deeply, question assumptions, and construct logical arguments about fundamental questions concerning existence, knowledge, ethics, and society.
欢迎来到迷人的哲学世界！本文涵盖了Year 9 CIE哲学课程中常见的核心主题。哲学鼓励你深入思考、质疑假设，并构建关于存在、知识、伦理和社会等根本问题的逻辑论证。
1. What is Philosophy? | 什么是哲学？
Philosophy literally means ‘love of wisdom’. It is the rational inquiry into the most basic questions about reality, knowledge, and values. Unlike science, which relies on empirical experiments, philosophy uses logical reasoning and thought experiments to explore concepts such as justice, truth, and the self.
哲学的字面意思是 “爱智慧”。它是对现实、知识和价值等最基本问题的理性探究。不同于依赖经验实验的科学，哲学运用逻辑推理和思想实验来探索诸如正义、真理与自我等概念。
Key branches of philosophy include metaphysics (the study of reality), epistemology (the study of knowledge), ethics (the study of morality), and logic (the study of correct reasoning).
哲学的主要分支包括形而上学(研究实在)、知识论(研究知识)、伦理学(研究道德)和逻辑学(研究正确推理)。
2. Logic and Argumentation | 逻辑与论证
An argument in philosophy is a set of statements (premises) intended to support a conclusion. A valid deductive argument is one where if the premises are true, the conclusion must be true. For example: All humans are mortal. Socrates is human. Therefore, Socrates is mortal.
哲学中的论证是一组用于支持结论的陈述(前提)。一个有效的演绎论证是指：如果前提为真，则结论必然为真。例如：所有人都会死。苏格拉底是人。因此，苏格拉底会死。
Inductive arguments, on the other hand, provide probable support for the conclusion. Most swans we have observed are white, so the next swan is likely to be white. This makes the conclusion likely but not certain.
另一方面，归纳论证为结论提供概然性支持。我们观察到的大多数天鹅是白色的，所以下一只天鹅很可能也是白色的。这使得结论很可能但不确保。
Common fallacies include the ad hominem fallacy (attacking the person instead of the argument) and the straw man fallacy (misrepresenting an opponent’s view). Recognizing fallacies helps evaluate reasoning critically.
常见的谬误包括人身攻击谬误(攻击人而非论证)和稻草人谬误(歪曲对方观点)。识别谬误有助于批判性地评估推理。
In symbolic logic, we use symbols: ¬ (negation), ∧ (conjunction), ∨ (disjunction), → (conditional), and ≡ (biconditional). For instance, modus ponens is: (P → Q) ∧ P, therefore Q.
在符号逻辑中，我们使用符号：¬(否定)、∧(合取)、∨(析取)、→(条件)和≡(双条件)。例如，肯定前件式是：(P → Q) ∧ P，因此Q。
3. Epistemology: How Do We Know? | 知识论：我们如何知道？
Epistemology asks what knowledge is and how we acquire it. Traditionally, knowledge is defined as justified true belief (JTB). For someone to know that P, they must believe that P, P must be true, and they must have justification for believing P.
知识论探究知识是什么以及我们如何获取它。传统上，知识被定义为确证的真信念(JTB)。某人要知道P，必须相信P，P必须为真，并且必须有相信P的确证理由。
However, the Gettier problem challenges this definition by showing cases where justified true belief may still not count as knowledge. For instance, a person might justifiably believe a true proposition based on a lucky guess or flawed reasoning.
然而，盖梯尔问题通过展示一些案例挑战了这个定义，这些案例中确证的真信念可能仍不算知识。例如，一个人可能基于幸运猜测或有缺陷的推理确证地相信一个真命题。
Scepticism questions whether we can have any certain knowledge at all. Descartes famously used the method of doubt, imagining an evil demon deceiving him, to reach the indubitable truth ‘I think, therefore I am’ (Cogito, ergo sum).
怀疑论质疑我们究竟能否有任何确定的知识。笛卡尔著名地运用怀疑方法，设想一个邪恶精灵欺骗他，从而得出不容置疑的真理 “我思故我在”。
4. Rationalism and Empiricism | 理性主义与经验主义
Rationalism holds that reason is the primary source of knowledge, and that some ideas are innate. Descartes, Spinoza, and Leibniz argued that we can gain substantive knowledge about the world through reason alone, independent of sensory experience.
理性主义主张理性是知识的主要来源，并且某些观念是天赋的。笛卡尔、斯宾诺莎和莱布尼茨认为我们可以仅通过理性获得关于世界的实质性知识，独立于感官经验。
Empiricism, championed by Locke, Berkeley, and Hume, claims that all knowledge comes from sensory experience. The mind at birth is a tabula rasa (blank slate). Without sensation and reflection, we would have no ideas.
经验主义，以洛克、贝克莱和休谟为代表，主张所有知识来自感官经验。心灵在出生时是一块白板(tabula rasa)。没有感觉和反省，我们就没有任何观念。
Kant attempted a synthesis: while all knowledge begins with experience, it does not all arise out of experience. The mind actively structures experience using innate categories such as space, time, and causality.
康德试图综合二者：尽管所有知识始于经验，但并非全都源自经验。心灵运用天赋的范畴如空间、时间和因果性来主动构造经验。
5. Ethics: Theories of Right and Wrong | 伦理学：对与错的理论
Ethics investigates moral principles. Consequentialism, most famously utilitarianism, judges actions by their outcomes. Jeremy Bentham’s utilitarianism proposes the greatest happiness principle: an action is right if it produces the greatest happiness for the greatest number.
伦理学探究道德原则。后果论，最著名的是功利主义，根据行为的结果来判断。边沁的功利主义提出最大幸福原则：如果一个行为为最大多数人带来最大幸福，该行为就是正确的。
Deontology, associated with Immanuel Kant, focuses on duties and rules. Kant’s categorical imperative states that you should act only according to that maxim whereby you can at the same time will that it should become a universal law. It emphasises moral absolutes, not consequences.
义务论，与康德相关，关注义务和规则。康德的绝对命令指出，你只应根据那个你能够同时愿意它成为普遍法则的准则去行动。它强调道德绝对，而非后果。
Virtue ethics, inspired by Aristotle, focuses on character rather than specific actions. It asks: what kind of person should I be? A virtuous person develops traits like courage, temperance, and wisdom to flourish (eudaimonia).
美德伦理学，受亚里士多德启发，专注于品格而非具体行为。它问：我应该成为什么样的人？一个有德性的人培养勇敢、节制和智慧等品质以实现繁荣(eudaimonia)。
6. Free Will and Determinism | 自由意志与决定论
Determinism is the view that every event is causally necessitated by prior events and natural laws. If determinism is true, all our choices are determined, which seems to conflict with free will and moral responsibility.
决定论认为每个事件都由先前事件和自然法则因果必然地决定。如果决定论为真，我们所有的选择都是被决定的，这似乎与自由意志和道德责任冲突。
Libertarianism (in philosophy of free will) holds that we do have free will and that determinism is false. Some agent-causal theories assert that we can initiate actions as uncaused causes.
自由意志论(在自由意志哲学中)主张我们确实有自由意志并且决定论为假。一些行为者因果理论断言，我们可以作为无原因的原因来发起行动。
Compatibilism (soft determinism) argues that free will and determinism are compatible. According to Hume, an action is free if it is caused by the agent’s own desires and will, even if those desires are themselves determined. Free will means being able to act according to one’s own motives without external coercion.
相容论(温和决定论)主张自由意志与决定论相容。根据休谟，如果一个行为是由行为者自己的欲望和意志引起的，即使那些欲望本身是被决定的，该行为也是自由的。自由意志意味着能够根据自己的动机行动而不受外部强制。
7. Mind and Body | 心灵与身体
The mind-body problem concerns the relationship between mental phenomena (like thoughts, sensations) and physical processes. Dualism, most notably defended by Descartes, claims that mind and body are two distinct substances: mental substance (non-physical) and physical substance (extended). Interactionism suggests they causally influence each other.
身心问题关注心理现象(如思想、感受)与物理过程之间的关系。二元论，最著名由笛卡尔辩护，主张心灵与身体是两种不同的实体：精神实体(非物理的)和物理实体(广延的)。交互论认为它们因果地相互影响。
Physicalism (or materialism) is the view that everything is physical, and mental states are identical to or supervene on brain states. The identity theory claims that mental states just are certain brain processes.
物理主义(或唯物主义)认为一切都是物理的，心理状态与大脑状态同一或随附于大脑状态。同一论主张心理状态就是某些大脑过程。
Functionalism argues that mental states are defined by their causal roles, not by their physical makeup. This allows for the possibility of artificial intelligence having mental states, as long as the functional organisation is equivalent.
功能主义认为心理状态由其因果角色定义，而非物理构成。这使得人工智能可能拥有心理状态，只要功能组织相同。
8. Arguments for the Existence of God | 上帝存在的论证
The ontological argument, proposed by Anselm, defines God as ‘that than which nothing greater can be conceived’. If God exists only in the mind, we can conceive of a greater being that also exists in reality. Therefore, God must exist in reality. Descartes also offered a version based on the perfect being having the property of existence.
本体论论证由安瑟伦提出，将上帝定义为 “无法设想有比之更伟大者”。如果上帝只存在于心中，我们可以设想一个也在现实中存在的更伟大者。因此，上帝必然存在于现实中。笛卡尔也提出了基于完美存在具有存在属性的版本。
The cosmological argument starts from the existence of the universe and seeks a first cause. Aquinas’ Second Way argues that everything
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