Natural Law: Strengths & Weaknesses

In the table below are the strengths and weaknesses of Natural Law. Please find underneath it a show video on the same topic. 

Strengths

Weaknesses

1. There is emphasis on innate human reason which is a positive because unlike emotions reason does not change. It also means the theory is universal and can attract a large number of supporters.

1. Natural Law finds it difficult to relate to complex decision to basic principles in practice e.g. should more money be spent on hospitals or schools?

2. Clear-cut approach to morality and establishes common rules.

2. It commits a Naturalistic Fallacy according to G.E.Moore. One cannot derive an ought from an is i.e. is we assume God created a moral law is a fact or that we have a natural inclination to care for others as a fact- this does not we ought to follow the moral law or care for others.

3. The basic principles of preserving human life, reproduction, learning and living in a society are common in all cultures hence Natural Law is a reasonable theory.

3. Natural Law is based on five assumptions, the primary one being that humans and the world in general has a purpose, however, modern science can be used to show why this isn’t the case.

4. Natural Law does not just dictate what should be done it goes beyond that, like Virtue Ethics, it concentrates on human character and virtues.

4. Neilsen uses cultural relativism to question Natural Law and the belief in one common law.

5. Natural Law relies on practical wisdom as well as reason including the body, some emotions and passions sometimes.

5. Baron says that relying too much on reason is bad because this leads to corruption as human nature is corrupt. He believers it is better to follow scripture and revelation. 

6. All things required for happiness e.g. health, friendship etc are morally good and can be achieved through Natural Law.

6. It is difficult to work out the primary purpose of everything e.g. is the primary purpose of sex to procreate or enhance a relationship – the clitoris provides evidence that the sole purpose of sex is not just to have children.

7. It is useful for the issues where the Bible is silent e.g. IVF

7. Some Catholic Scholars believe Natural Law is not enough on its own to be a true Catholic- Church teaching and revelation are of utmost interest too!

8. One cannot rely on predicting consequences because often we are wrong so Natural Law provides a good alternative to consequentialist theories

8. Vardy and Grosh criticize the way Aquinas works from general principles to lesser purposes and sees his view of human nature as unholistic and simplistic. 

9. It puts a high premium on life and protects the vulnerable.

9. It is self-contradictory you cannot say that clear-cut rules are provided and then uses casuistry to allow room fro flexibility.

10. It upholds human rights and has been included in the UN declaration of human rights.

10. What is more important actions or consequences? e.g. if a man with an axe asked you where your friend was surely it is more moral to lie and save the life of your friend?

11. Casuistry allow it benefit from flexibility as well as adhering to benefits from being absolutist.

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