1. Virtue and Natural Law

2. Natural law theory (Aquinas) Eternal law: law of nature governing universe Natural law: governs what things should do or be A thing’s nature determines its function, and thus its virtue (Aristotle) So, eternal law determines natural law

3. What is natural law? General form: pursue good— what helps to perfect our nature— and avoid evil Goods are reasons to act Principles of practical rationality

4. Natural Law Principles for judging acts as reasonable or unreasonable They are objective, universal, and knowable Natural dispositions are guide

5. Dispositions and Precepts What natural dispositions do we have? Kinds of natural law precepts: – Self-preservation – Biological welfare – Laws of reason

6. Self-preservation Our survival is a good— it gives us reason to act We have a natural disposition to survive, to protect ourselves Normally, things that violate that disposition are wrong

7. Self-preservation So, normally— in the absence of other moral considerations— it is wrong to – Kill – Injure – Attack Anyone, including oneself Killing the innocent is always wrong

8. Self-preservation Normally— in the absence of other moral considerations— we are permitted to do what we must to protect ourselves and survive So, we may – Defend ourselves – Use resources to survive

9. Biological welfare We have a natural disposition to seek to improve our own welfare Our welfare is a good; it gives us reason to act So, normally, we may seek – Food – Shelter – Companionship – Material goods

10. Laws of reason Our function is rational activity Our rational nature gives us dispositions We are naturally disposed to seek to – Know – Understand – Be reasonable

11. Conscience We have a natural disposition to pursue the good and avoid evil Conscience: natural law written on the heart We have the ability to tell right from wrong And a natural tendency to do right

12. Conscience There are no rules to tell us, in every case, what to do We must rely on practical wisdom: judgment, virtue But there are some absolute rules (do not kill the innocent, for example)

13. Goods Play Beauty Pleasure Absence of pain Achievement Excellence Inner peace Harmony Integrity Happiness Life Procreation Social life Knowledge Rational conduct Authenticity Justice Friendship Religion

14. Right action An act is right, or reasonable, if it – Aims at some good – Has no intrinsic flaws When is an act intrinsically flawed? Look at act’s intention, objects, ends, and circumstances

15. Intrinsic Flaws An act is intrinsically flawed if it – Has a flawed intention— directed against a good (e.g., murder of innocent people) – Has an object mismatched to its end (switching means and end— treating money as an end in itself, for instance, or material goods just as ways of getting money)

16. Intrinsic Flaws An act is intrinsically flawed if it: – Is directed at the wrong end (e.g., obsessive-compulsive behavior) – Is inappropriate in the circumstances (e.g., singing in class, eating while teaching, etc.) There list of intrinsic flaws is indefinite; there may be other ways

17. The priority problem How can we choose among competing goods? Aquinas gives no definite answer A moral rule is justified if it rules out only choices that presuppose something false about basic goods Sometimes, there is no rule We need practical wisdom