15 Common Mistakes When Studying Ethics (And How to Fix Them) | LearnByTeaching.ai
Ethics is not about having opinions — it is about constructing rigorous arguments for moral positions using established philosophical frameworks. Students who approach ethics as a matter of personal preference miss the discipline's analytical rigor. Here are 15 mistakes to avoid.
Defaulting to Moral Relativism
Students shut down ethical reasoning by saying 'everyone has their own opinion' or 'who's to say what's right?' While moral disagreement is real, relativism as a default position makes genuine ethical analysis impossible and contradicts itself.
Responding to every ethical dilemma in discussion with 'it depends on the person's values' without engaging with the specific moral arguments for and against each position.
How to fix it
Engage with moral arguments on their merits. Even if you ultimately believe moral truths are relative, you must still be able to construct and evaluate arguments within each framework. Practice taking a definite position and defending it — you can always revise later.
Confusing Descriptive and Normative Claims
Descriptive claims state what is the case; normative claims state what ought to be the case. Students who blur this distinction commit the is-ought fallacy, deriving moral conclusions from factual premises alone.
Arguing that because most people in a culture accept a practice (descriptive), the practice is therefore morally acceptable (normative). The fact that something is widely practiced says nothing about whether it should be.
How to fix it
For every claim in an ethical argument, ask: is this a factual claim about how things are, or a moral claim about how things should be? Normative conclusions require normative premises — you cannot derive 'ought' from 'is' alone.
Applying Utilitarianism as Naive Cost-Benefit Analysis
Students reduce utilitarianism to 'whatever produces the most good for the most people,' missing its philosophical sophistication. Classical utilitarianism must grapple with measuring and comparing utility, distinguishing act from rule utilitarianism, and addressing justice concerns.
Arguing that harvesting organs from one healthy person to save five dying patients maximizes utility, without considering rule utilitarian objections (a society that allows this would create such fear and distrust that overall utility would decrease).
How to fix it
Study the varieties of utilitarianism: act vs. rule, preference vs. hedonic, and the distinction between maximizing total vs. average utility. Engage with the classic objections (the utility monster, the experience machine, the demandingness objection) and understand how sophisticated utilitarians respond.
Misunderstanding Kant's Categorical Imperative
Students reduce Kant to 'follow the rules' without understanding the universalizability test or the formula of humanity. The categorical imperative is a procedure for testing maxims, not a list of prohibited actions.
Claiming Kant would say lying is always wrong 'because rules are rules,' without explaining the universalizability test: if everyone lied, the concept of promising would be destroyed, making lying self-defeating as a universal practice.
How to fix it
Learn both formulations: (1) Act only according to maxims you could will as universal laws, and (2) Treat humanity always as an end, never merely as a means. Practice applying both to specific cases. Kant's ethics is procedural — it tests whether your principle could be universally applied without contradiction.
Treating Ethical Frameworks as Mutually Exclusive
Students assume you must pick one framework (utilitarian, deontological, or virtue ethics) and apply it to everything. In practice, different frameworks illuminate different aspects of moral problems, and intellectual maturity involves navigating between them.
Refusing to consider utilitarian arguments after identifying as a 'Kantian,' missing that the best ethical analysis often draws on multiple frameworks to examine a problem from multiple angles.
How to fix it
Practice analyzing the same dilemma from utilitarian, deontological, and virtue ethics perspectives. Note where they agree, where they disagree, and what each framework reveals that the others miss. The goal is ethical fluency across frameworks, not allegiance to one.
Arguing from Emotion Instead of Reason
Moral intuitions and emotional reactions are important starting points, but they are not arguments. Students who say 'that just feels wrong' without articulating why cannot participate in ethical discourse at the level the course requires.
Arguing against animal testing by saying 'it just feels cruel' without articulating a principled argument — for example, that animals have the capacity for suffering (Singer's sentience criterion) and that their suffering has moral weight that must be weighed against research benefits.
How to fix it
When you have a strong moral intuition, investigate it: what principle underlies this feeling? Can you articulate it as a moral argument? If not, your intuition may be a prejudice. If so, the argument — not the feeling — is what you present in academic discussion.
Not Engaging with Counterarguments
Strong ethical reasoning requires addressing the strongest objections to your position. Students who present only supporting arguments produce one-sided essays that fail to demonstrate genuine philosophical reasoning.
Writing a paper defending euthanasia from an autonomy perspective without addressing the objection that legalizing euthanasia could create pressure on vulnerable patients to choose death, or the slippery slope concern about expanding eligibility criteria.
How to fix it
For every position you defend, identify the two strongest counterarguments. Present them fairly (steelmanning, not strawmanning) and then explain why your position survives these objections. This is the structure of rigorous ethical argumentation.
Conflating Legal and Moral
What is legal is not necessarily moral, and what is moral is not necessarily legal. Students who argue 'it's legal, therefore it's ethical' or 'it's illegal, therefore it's unethical' conflate two distinct domains.
Arguing that tax avoidance through offshore accounts is ethical because it is legal, without engaging with the moral question of whether wealthy individuals have obligations of fairness to contribute to public goods.
How to fix it
Always separate legal and moral analysis. After determining what the law allows, separately ask: is this morally right? History is full of laws that were legal but immoral (segregation, slavery) and moral actions that were illegal (civil disobedience). The domains overlap but are not identical.
Ignoring Applied Ethics Case Studies
Abstract ethical theory comes alive through applied cases. Students who study theory without applying it to real-world dilemmas develop intellectual understanding without practical moral reasoning skills.
Understanding utilitarian theory in the abstract but being unable to apply it to a concrete case like autonomous vehicle crash algorithms, healthcare rationing, or AI bias — the cases where ethical reasoning actually matters.
How to fix it
For every theoretical framework you study, apply it to at least two real-world cases. How does utilitarian analysis apply to climate change policy? What does Kant's categorical imperative say about data privacy? Applied cases test and deepen theoretical understanding.
Oversimplifying Virtue Ethics
Students reduce virtue ethics to 'be a good person' without understanding Aristotle's specific account of virtues as character traits developed through practice, the doctrine of the mean, or the concept of eudaimonia (flourishing).
Claiming virtue ethics just means 'do what a virtuous person would do,' which is circular without understanding how virtues are identified, developed, and balanced — for example, that courage is the mean between cowardice and recklessness.
How to fix it
Study Aristotle's specific framework: virtues are stable character traits, developed through habituation, that represent the mean between extremes (deficiency and excess). Eudaimonia (human flourishing) is the ultimate goal, and virtuous activity is the means to achieve it. This is a sophisticated ethical theory, not a platitude.
Writing Ethics Papers Without a Clear Thesis
Ethics essays require a specific, debatable moral claim defended with arguments. Students who write descriptive summaries of ethical theories without arguing for a position fail to demonstrate ethical reasoning.
Writing a paper that summarizes what utilitarianism, deontology, and virtue ethics each say about genetic engineering without ever stating and defending the student's own argued position on whether genetic engineering is morally permissible.
How to fix it
Start every ethics paper with a clear thesis: a specific moral claim that a reasonable person could disagree with. Then construct arguments in its favor, address counterarguments, and defend your conclusion. The thesis drives the entire paper.
Appealing to Authority or Tradition
Arguments like 'Kant said it, so it must be right' or 'we've always done it this way' are logical fallacies. Ethical arguments must stand on their own merits, regardless of who made them or how old they are.
Defending a moral position solely because a respected philosopher holds it, without engaging with the actual arguments the philosopher provides. The authority of the thinker does not make the argument valid — the reasoning does.
How to fix it
When citing a philosopher, present their argument, not just their conclusion. Then evaluate the argument on its merits. Tradition and authority can be starting points for investigation, but they are not themselves moral justifications.
Not Reading Primary Texts
Students rely on textbook summaries of Kant, Mill, Aristotle, and others without reading the original texts. Summaries flatten nuance and can misrepresent subtle positions.
Understanding Mill's utilitarianism only through a textbook summary that omits his distinction between higher and lower pleasures, which is essential for understanding how sophisticated utilitarianism responds to the 'pig satisfied' objection.
How to fix it
Read key excerpts from primary texts: Mill's Utilitarianism (especially Chapter 2), Kant's Groundwork (especially Section 2), and Aristotle's Nicomachean Ethics (especially Books I and II). Even short excerpts reveal subtleties that summaries miss.
Confusing Personal Morality with Ethical Theory
Students treat ethics class as an exercise in sharing personal moral beliefs rather than a rigorous study of moral reasoning. Personal convictions are starting points, not conclusions.
Responding to every ethical dilemma with 'personally, I believe...' rather than constructing an argument grounded in a philosophical framework that could persuade someone who does not share your starting assumptions.
How to fix it
Frame your arguments in terms of principles and reasons, not personal preferences. Instead of 'I believe X,' say 'X is defensible because [principle], as demonstrated by [reasoning], and the strongest objection [counterargument] fails because [rebuttal].'
Avoiding Uncomfortable Ethical Questions
Ethics requires engaging with topics that are emotionally challenging: death, injustice, suffering, autonomy, and fairness. Students who avoid uncomfortable discussions miss the most important territory of the discipline.
Refusing to engage with the ethics of end-of-life care, capital punishment, or resource allocation during pandemics because the topics are emotionally difficult, when these are exactly the situations where ethical reasoning is most needed.
How to fix it
Approach uncomfortable topics with analytical rigor rather than emotional avoidance. Separate the emotional difficulty of a topic from the intellectual work of analyzing it. You can be emotionally affected and analytically rigorous at the same time — in fact, the best ethical reasoning requires both.
Quick Self-Check
- Can I explain the difference between a descriptive claim and a normative claim with examples?
- Can I analyze a single ethical dilemma from utilitarian, deontological, and virtue ethics perspectives?
- Can I state Kant's categorical imperative in both formulations and apply each to a specific case?
- Can I present the strongest counterargument to my own moral position and respond to it?
- Can I distinguish between what is legal and what is moral in a specific real-world case?
Pro Tips
- ✓Practice arguing for positions you personally disagree with. This is the single most effective exercise for developing genuine ethical reasoning skills, because it forces you to find the strongest arguments rather than the ones that confirm your existing beliefs.
- ✓When analyzing an ethical dilemma, use a structured approach: identify the stakeholders, identify the competing values at stake, apply at least two frameworks, address counterarguments, and state your reasoned conclusion.
- ✓Read Peter Singer's Practical Ethics for accessible applied ethics that demonstrates how philosophical frameworks connect to real-world decisions about poverty, animal welfare, and environmental responsibility.
- ✓Keep a journal of ethical questions from current events. AI ethics, climate policy, and healthcare allocation provide endless material for applying theoretical frameworks to live debates.
- ✓In class discussions, practice steelmanning — restating the opposing position in its strongest possible form before responding. This demonstrates intellectual honesty and produces more productive dialogue.