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 - lecture
 ---
 
+# what is ethics
+![example definitions|400](https://i.imgur.com/5A6nmkB.png)
 
+- concerned with the fundamental issues of practical decision making. what actions should we take or not take?
+
+requirements for an ethical system
+- must be usable and practical
+- need to be able to learn it, and use it
+
+need to maintain respect for others views
+
+## normative ethics
+- the study of ethical behaviour
+- investigates questions regarding how someone should act
+
+three approaches
+- deontology (duty or rule based)
+- utilitarianism (consequentialism)
+- virtue ethics (character based)
+
+## deontology
+- categorical imperitive - instrinsically valid principles that are good in and of themselves
+	- must be obeyed always
+	- e.g., dont murder people
+- immanuel kant
+- fundamental assumption that each person has intrinsic worth and deserves basic respect
+- may be disagreements about principles involved - e.g., inherent universal ethics, religious laws, or cultural values
+
+## utilitarianism
+- maximise happiness and wellbeing for people
+- john stuart mill
+- practical approach, does not consider the rights of those who disagree
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