📚 Case Study Practice in Action for Year 7 Cambridge Philosophy | 剑桥七年级哲学案例分析实战演练
Philosophy invites you to ask big questions about right and wrong, knowledge, and the nature of reality. Case studies bring these questions to life through carefully crafted imaginary scenarios. By working through these cases, you learn to construct arguments, evaluate different viewpoints, and think critically. In this article, we will explore classic philosophical thought experiments and develop the skills needed to analyse them effectively.
哲学邀请你提出关于对与错、知识以及现实本质的重大问题。案例分析通过精心设计的想象情境让这些问题变得鲜活起来。通过处理这些案例，你学会构建论证、评价不同观点并进行批判性思考。在本文中，我们将探索经典的哲学思想实验，并发展有效分析它们所需的技能。
1. What Is a Case Study in Philosophy? | 什么是哲学案例分析？
In philosophy, a case study is a detailed, imaginary situation designed to probe ethical dilemmas, test theories of knowledge, or examine the nature of identity. Unlike experiments in science, these are thought experiments – we run them in our minds. They force us to examine our intuitions and to reason clearly about principles.
在哲学中，案例分析是一个详细的想象情境，旨在探究伦理两难、检验知识理论或审视同一性的本质。与科学实验不同，这些都是思想实验——我们在头脑中进行。它们迫使我们审视自己的直觉，并对原则进行清晰的推理。
A strong philosophical case study asks a question that has no single correct answer. It invites competing interpretations, each supported by reasons and evidence. Your task is to weigh those reasons and reach a justified conclusion.
一个强有力的哲学案例研究会提出一个没有单一正确答案的问题。它引发相互竞争的解释，每种解释都有理由和证据支撑。你的任务就是权衡这些理由，得出一个有理有据的结论。
2. The Trolley Problem: An Ethical Dilemma | 电车难题：一个伦理两难
Imagine a runaway trolley racing down a track where five people are tied up and unable to move. You are standing next to a lever that can switch the trolley onto another track, but there is one person tied up on that side track. Do you pull the lever, sacrificing one person to save five? This is the classic trolley problem, first proposed by philosopher Philippa Foot.
想象一辆失控的电车沿着轨道冲去，轨道上绑着五个人，他们无法动弹。你站在一个拉杆旁，拉杆可以将电车转向另一条轨道，但那条轨道上也绑着一个人。你会拉动拉杆，牺牲一个人来拯救五个人吗？这就是经典的电车难题，由哲学家菲利帕·福特首次提出。
The scenario pits two moral intuitions against each other: the idea that saving more lives is better, and the idea that deliberately causing someone’s death is wrong. By varying the details, we can test the limits of our ethical principles. Would your answer change if you had to push a large person off a bridge to stop the trolley? Why or why not?
这个场景使两种道德直觉相互对立：拯救更多生命是更好的，与故意造成他人死亡是错误的。通过改变细节，我们可以检验我们道德原则的边界。如果你必须把一个身材高大的人推下桥来阻止电车，你的答案会改变吗？为什么？
3. Analysing the Trolley Problem: Consequentialism vs Deontology | 分析电车难题：后果论与义务论
Consequentialism holds that the right action is the one that produces the best overall outcome. From this perspective, pulling the lever is morally required because five lives saved outweigh one life lost. The focus is entirely on the consequences.
后果论认为，正确的行动是能产生最佳整体结果的那个行为。从这个角度看，拉动拉杆在道德上是必要的，因为五条被救的生命超过了一条失去的生命。其焦点完全在于后果。
Deontology, by contrast, argues that some actions are right or wrong in themselves, regardless of their consequences. A deontologist might say that using a person merely as a means to an end is wrong, so pulling the lever violates a moral duty. In the bridge version, pushing the person seems even more unacceptable because it uses them directly as a tool.
相比之下，义务论认为某些行为本身就正确或错误，无论其后果如何。一个义务论者可能会说，仅仅把一个人当作达到目的的手段是错误的，因此拉动拉杆违背了道德义务。在推人下桥的版本中，这一行为似乎更不可接受，因为它直接把人当作了工具。
| Consequentialism | 后果论 |
| Morality is judged by outcomes. | 道德由结果来判断。 |
| Saving five lives justifies pulling the lever. | 拯救五条生命为拉动拉杆提供了理由。 |
| Deontology | 义务论 |
| Morality is based on duties and rights. | 道德基于义务和权利。 |
| Intentionally harming someone is wrong, even for a good end. | 故意伤人就是错的，即使为了好的结果。 |
4. The Ship of Theseus: Identity and Change | 忒修斯之船：同一性与变化
According to legend, the ship of the hero Theseus was kept in Athens as a memorial. Over time, its wooden planks decayed and were replaced one by one until none of the original material remained. Is it still the same ship? Now imagine that someone collected all the old planks and reassembled them into a ship. Which one, if either, is the true Ship of Theseus?
根据传说，英雄忒修斯的船被保存在雅典作为纪念。随着时间的推移，船上的木板腐烂了，并被一块一块地替换，直到没有一块原始材料留下。它还是原来那艘船吗？再想象有人收集了所有旧木板，将它们重新组装成一艘船。这两艘船中，哪一艘——如果有的话——是真正的忒修斯之船？
This thought experiment challenges our concept of identity over time. If identity depends on the continuity of material, then the repaired ship fails the test. But if identity is about the overall pattern or the story of the object, then the gradually repaired ship may keep its identity, while the reassembled one does not.
这个思想实验挑战了我们关于同一性随时间变化的概念。如果同一性取决于材料的连续性，那么修复后的船就不符合标准。但如果同一性关乎整体模式或物体的故事，那么逐渐修复的船可能保持了同一性，而重新组装的那艘则没有。
5. Analysing the Ship of Theseus: What Makes You You? | 分析忒修斯之船：什么让你成为你？
Apply the same puzzle to yourself. Your body’s cells are constantly being replaced. Over several years, most of your physical matter changes. If psychological continuity — your memories, beliefs, and personality — is what matters, then you remain the same person even as your body changes. This is called the psychological continuity theory of personal identity.
把同样的难题应用到你身上。你身体的细胞在不断地更新。几年内，你大部分的物质都会变化。如果心理连续性——你的记忆、信念和个性——是关键，那么即使身体变化，你仍然是同一个人。这称为个人同一性的心理连续性理论。
Some philosophers argue instead for the biological continuity theory: you are the same person as long as your living organism continues without interruption. Others, like David Hume, suggest that the self is just a bundle of perceptions with no fixed core. Case studies like the Ship of Theseus help us examine which of these views is most convincing.
有些哲学家则主张生物连续性理论：只要你作为活的有机体不间断地延续，你就是同一个人。其他人，如大卫·休谟，认为自我只是一束知觉，没有固定的核心。像忒修斯之船这样的案例分析帮助我们检验哪种观点最有说服力。
6. The Ring of Gyges: Justice and Morality | 盖吉斯之戒：正义与道德
In Plato’s Republic, Glaucon tells the story of a shepherd who finds a ring that makes him invisible. Using this power, the shepherd commits unjust acts without fear of punishment — seducing the queen, killing the king, and seizing power. Glaucon asks: if two such rings existed and one was given to a just person, would that person still act justly?
在柏拉图的《理想国》中，格劳孔讲述了一个牧羊人发现一枚能让他隐身的戒指的故事。借助这种力量，牧羊人肆无忌惮地做出不义之事——引诱王后、杀死国王、夺取王权。格劳孔问道：如果存在两枚这样的戒指，其中一枚给予一个正义的人，这个人还会继续行正义之事吗？
The story questions whether people are just only because they fear consequences, or because justice is good in itself. If no one could ever catch you, would you keep your moral commitments? This makes us examine the very foundation of ethics.
这个故事追问人们行正义是否仅仅因为害怕后果，还是因为正义本身就是善。如果永远没人能抓住你，你还会坚守道德承诺吗？这促使我们审视伦理的根基。
7. Analysing the Ring of Gyges: Would You Do Wrong? | 分析盖吉斯之戒：你会做错事吗？
One response, inspired by belief in an afterlife or karma, says that justice is ultimately rewarded and injustice punished, so the ring cannot guarantee complete safety. However, Glaucon imagines the ring gives perfect immunity. In that case, a consequentialist might calculate that acting unjustly is rational because it maximises personal gain.
一种回应受到来世或业力信念的启发，认为正义终有回报，不义终受罚，所以戒指无法保证绝对安全。然而，格劳孔设想这枚戒指提供了完全的豁免权。那样的话，后果论者可能计算得出，做不义之事是理性的，因为它最大化个人收益。
Plato believed that justice is a harmony of the soul, and a just person is happier even without external rewards. A virtuous person would not use the ring, because acting unjustly damages the soul’s balance. To evaluate this, think carefully how you would behave and why. Would your answer reveal something about your true character?
柏拉图相信正义是灵魂的和谐，一个正义的人即使没有外在回报也会更幸福。一个有德之人不会使用那枚戒指，因为不义的行为会损害灵魂的平衡。为了评价这一点，仔细想想你会如何行动以及为什么。你的答案会揭示你真实品格的某些东西吗？
8. Brain in a Vat: Scepticism and Reality | 缸中之脑：怀疑论与现实
Imagine that while you were sleeping, a mad scientist removed your brain, placed it in a vat of nutrients, and connected it to a supercomputer that feeds you all the sensations of ordinary life. Everything you experience — this screen, your chair, the sound of your breath — is just a simulation. Could you prove that you are not a brain in a vat?
想象一下，在你睡着的时候，一个疯狂的科学家取出了你的大脑，将它放进一个营养液缸里，并连接到一台超级计算机上，这台计算机为你提供日常生活的一切感官体验。你所经历的一切——这个屏幕、你的椅子、你的呼吸声——都只是模拟。你能证明自己不是一个缸中之脑吗？
This scenario, drawing on ideas from René Descartes, raises radical scepticism: the view that knowledge about the external world may be impossible. If all your evidence comes from your senses, and you cannot step outside your own mind to check whether those senses match reality, how can you be sure of anything?
这个情境借鉴了勒内·笛卡尔的思想，引发了彻底的怀疑论：即关于外部世界的知识或许是不可能获得的。如果你的所有证据都来自于感官，而你无法跳出自己的头脑去检验这些感官是否与现实相符，你又如何能确信任何事呢？
9. Analysing Brain in a Vat: Can We Trust Our Senses? | 分析缸中之脑：我们能相信感官吗？
Some philosophers argue that the brain-in-a-vat hypothesis cannot be coherently believed, because a brain in a vat cannot genuinely refer to real vats or brains — its words would be disconnected from actual things. This argument attempts to show that radical scepticism undermines its own statement.
有些哲学家认为，缸中之脑的假设不可能被融贯地相信，因为一个缸中之脑无法真正指称真实的缸或大脑——它的词语会与实际事物脱节。这种论证试图表明，彻底的怀疑论会削弱它自身的陈述。
Others, like Descartes, sought a foundation for knowledge in the indubitable fact ‘I think, therefore I am’ (Cogito, ergo sum). While you might doubt the external world, you cannot doubt your own existence as a thinking thing. Year 7 students can explore whether complete certainty is necessary for knowledge, or whether we can reasonably trust our senses through their consistency and predictive success.
另一些人，如笛卡尔，在无可置疑的事实“我思故我在”（Cogito, ergo sum）中寻求知识的基础。你固然可以怀疑外部世界，但你不能怀疑自己作为一个思考者的存在。七年级学生可以探讨完全的确定性对于知识是否必要，或者我们能否凭借感官的一致性和预测成功率而合理地信赖它们。
10. Building Arguments: PEE Structure in Philosophy | 构建论证：哲学中的PEE结构
To write a good philosophical analysis, you need to structure your ideas clearly. A helpful framework is PEE: Point, Evidence, Explanation. Start by stating your point clearly — what is the claim you want to defend? Then provide evidence, which in philosophy often means referring to the case study, a principle, or a philosopher’s idea. Finally, explain how the evidence supports your point and why it is convincing.
要写出好的哲学分析，你需要清晰地组织自己的想法。一个有用的框架是PEE：观点（Point）、证据（Evidence）、解释（Explanation）。首先清晰地陈述你的观点——你想要辩护的主张是什么？然后提供证据，在哲学中这通常意味着引用案例分析、一条原则或一位哲学家的思想。最后，解释证据是如何支持你的观点的，以及为何它有说服力。
For example, in response to the trolley problem:
Point: Pulling the lever is the right action.
Evidence: It saves five lives while only one is lost.
Explanation: This follows the consequentialist principle that we should maximise overall well-being. The suffering prevented by saving five is much greater than the harm caused to one, so the net outcome is morally better.
例如，针对电车难题的回答：
观点：拉动拉杆是正确的行动。
证据：它拯救了五条生命而只失去一条。
解释：这遵循了后果论的原则，即我们应该最大化整体福祉。拯救五个人所避免的痛苦远远大于对一个人造成的伤害，因此净结果在道德上更优。
11. Writing a Case Study Response: Step-by-Step | 撰写案例分析回答：分步指南
When you face a philosophical case study in an exam or class discussion, follow these steps:
1. Identify the core philosophical question. Is it about ethics, knowledge, or identity?
2. Outline at least two contrasting viewpoints.
3. Present reasons for each side, using specific details from the case.
4. Consider an objection to your preferred view and respond to it.
5. Conclude by stating which position you find most reasonable and briefly why.
当你在考试或课堂讨论中面对一个哲学案例分析时，请遵循以下步骤：
1. 识别核心的哲学问题。它是关于伦理、知识还是同一性的？
2. 至少概述两种对立的观点。
3. 为每一方提出理由，使用案例中的具体细节。
4. 考虑一个反对你倾向观点的意见并回应它。
5. 做出结论，说明哪一种立场你认为最合理，并简要说明原因。
Remember that in philosophy, a well-reasoned response is more important than guessing what the teacher thinks. Showing that you understand the complexity of the issue and can engage with arguments is the key to a high mark.
请记住，在哲学中，经过充分推理的回应比猜测老师的想法更重要。展示你理解问题的复杂性并能参与论证，是获得高分的关键。
12. Practice Case Study: The Lifeboat Exercise | 实战演练：救生艇练习
Now it is your turn. Consider this scenario: A lifeboat is adrift at sea with limited supplies and is dangerously overcrowded. The boat holds 18 people, but there are 20 on board. Two must be sacrificed to save the rest. The passengers include a young child, a pregnant woman, an elderly retired teacher, a doctor, a musician, a teenager, and others. There is no time to draw lots or vote fairly. How should you decide who stays and who must leave?
现在轮到你了。请思考以下情景：一艘救生艇在海上漂流，补给有限，且严重超载。船只能容纳18人，但上面有20人。必须牺牲两人以拯救其余的人。乘客包括一名幼童、一名孕妇、一名年长的退休教师、一名医生、一名音乐家、一名少年以及其他人。没有时间进行抽签或公平投票。你该如何决定谁留下，谁必须离开？
Apply the PEE structure to write a short response. First, state your point: what principle should guide the decision — saving the most vulnerable, maximising future usefulness, or something else? Then, support it with evidence from the details of the case. Finally, explain your reasoning and address a possible objection, such as the unfairness of choosing based on a person’s job or age. This exercise will test your ability to think ethically and argue clearly.
运用PEE结构写出一段简短的回应。首先，陈述你的观点：应该用什么原则来指导决定——是保护最脆弱的，是最大化未来的用处，还是其他？然后，用案例中的细节来支持它。最后，解释你的推理，并回应可能出现的反对意见，比如根据一个人的工作或年龄来选择是不公平的。这个练习将考验你进行伦理思考并清晰论证的能力。
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