Preceptive part includes general rules such as "Do good" and "Avoid evil."
It is based on reason, which is innate to all humans.
Natural moral law is known through conscience, which is an innate sense of right and wrong that guides our actions.
Natural Moral Law is a deontological theory
Deontology focuses on the morality of actions rather than their consequences
NML context
Thomas Aquinas - 13th century Catholic priest. As a Catholic, Aquinas believed in the authority of the church and the bible
Syndersis principle
Act in a way that does good and avoidsevil
Primary and secondary precepts
Worship God
Ordered society
Reproduce
Learn
Defend the innocent/preserve life
Secondary precepts are derived from the primary precepts
Manualism
17th century creation. Made NML more deontological. Big manuals of secondary precepts
Proportionalism
Created by Hoose and McCormick. They agreed that sometimes, the primary precepts can lead to unloving outcomes. Sometimes, it is acceptable to break the precepts in order for a more loving outcome. 20th century movement.
The doctrine of double effect
Aquinas did acknowledge that there would be times when a person could follow the precepts but still end up breaking them. For example, if a pregnant woman with cancer was to receive chemotherapy, but the baby got killed in the process, it would come under 'preserving life' because you were trying to preserve the life of the mother, and the miscarriage is just a secondary effect. Aquinas argues that you've done nothing wrong.
Strengths of NML
Helps to establish rules that people can follow in society
Universal system as it relies on reason
The precepts are commonly accepted
Supports human rights and equality
Allows people to stand firm on moral issues
Secondary precepts act as a guide for moral right and wrong
Related to human nature
Weaknesses of NML
Reason is not universal, other cultures have different standards
It is outdated
Not everyone believes in God
Aquinas should've got some of his assumptions wrong in the body
Aquinas' account of nature is way too simplistic
NML and Abortion
To save the life of the mother due to double effect
Life begins at conception. Preserve life is a primary precept. Do not kill is a secondary precept. Catholic tradition teaches that abortion is always wrong
NML and Embryo research
Can be used to preserve life
Life begins at conception, so the embryo is already considered human. Any research that discards embryos is murder. Reproduction should be natural
NML and euthansia/assisted suicide
Pain killing drugs may be administered to someone, which may have an accidental secondary effect
Self-preservation is a primary precept
Divine law outlaws suicide
Catholic tradition says that suicide is an unforgivable sin
NML and Designer babies
Can be used to preserve life in the form of a saviour sibling
It is wrong to play God - goes against "worship God"
Reproduction should be natural
It would be wring to bring up a child thinking it was special - "educate children"
NML and capital punishment
Aquinas was in favour of CP as it maintains order and justice in society
CP in the bible "an eye for an eye"
The precept of preserving life is only preserving innocent life
CP was used in 13th century Italy
Preserve life
NML and capital punishment
Aquinas was in favour of CP as it maintains order and justice in society
CP in the bible "an eye for an eye"
The precept of preserving life is only preserving innocent life
CP was used in 13th century Italy
Preserve life
NML and Cloning
Therapeutic cloning can be used to create stem cells which can be used to help treat diseases such as leukemia
It is wrong to play God - "worship God"
Reproduction should be natural
Any cloning that destroys embryos is murder because life begins at conception - "defend the innocent"
Key scholars
Thomas Aquinas (C13th) and Hoose (C20th) and McCormick (C20th)