Natural Law Flashcards
Foundations of Natural Law
Based on Aristotelian teleology, which holds that everything has a nature guiding it toward its telos (end goal).
Aquinas Christianised this by asserting that God designed everything with a purpose.
Human reason enables people to intuitively grasp and apply moral principles, making Natural Law essential for moral living.
The Four Tiers of Law
Eternal Law: God’s divine plan embedded in the universe.
Divine Law: Moral laws revealed in scripture.
Natural Law: Moral order inherent in human nature, discoverable through reason.
Human Law: Laws created by societies, ideally based on Natural and Divine Law.
Primary & Secondary Precepts
Primary Precepts: Universal moral rules derived from Natural Law:
Worship God
Live in an orderly society
Reproduce
Educate children
Preserve innocent life
Secondary Precepts: Practical applications of primary precepts (e.g., banning euthanasia to uphold life preservation).
Moral Acts & Intention
Exterior acts refer to the physical action itself.
Interior acts are the intentions behind an action.
Both must align with Natural Law to be morally good.
The Doctrine of Double Effect
A morally permissible action can have both good and bad effects if:
The good effect is intended.
The bad effect is unintended but
unavoidable.
The good outweighs the bad.
Example: Killing in self-defence is acceptable if preserving life is the primary intention.
Universal Human Nature & Ethics
Human nature contains an inherent moral orientation towards goodness.
Ethical rules (such as the Golden Rule) are found across different cultures, suggesting a universal moral framework.
Modern Adaptations of Natural Law
Proportionalism (Bernard Hoose): Allows exceptions to Natural Law if breaking a precept results in greater overall good.
John Finnis’ Secular Natural Law:
Rejects telos and instead identifies seven basic goods (e.g., life, knowledge, play, sociability).
Focuses on law and authority to ensure the common good.
Support for Telos: Empirical Evidence
Aristotle and Aquinas observed that everything has a nature which inclines it towards a certain goal or telos.
Biological behaviors that help organisms flourish can be seen as evidence for telos.
Telos seems to be an empirically valid concept based on observable patterns in nature.
Support for Telos: Polkinghorne’s Argument
Science can explain what happens but cannot explain why things exist or have purpose.
Science is limited and cannot dismiss the possibility of a prime mover or God, which could provide a telos.
Criticism of Telos: Modern science rejection
Science focuses on material and efficient causation, rejecting final causation (purposeful causes).
According to modern science, everything is made of atoms and is influenced by forces, with no inherent telos.
Advances in science suggest telos is unnecessary for explaining the world.
Scientific explanations (e.g., Darwin’s theory of evolution) replace the need for telos.
Telos does not contribute significantly to our understanding of the world in light of modern scientific advancements.
Criticism of Telos: Evolutionary Biology
Evolution explains behaviors and changes (e.g., a seed growing into a tree) through material processes, not through telos.
Human behaviors are explained by evolution and survival, not by an inherent purpose or telos.
Criticism of Telos: Dawkins’ Argument
Just because we ask “why” doesn’t imply that purpose exists—this is similar to assuming that jealousy has a colour.
Those who claim that purpose exists must provide evidence for it; there is no scientific basis for telos.
Edward Feser’s Defence of Telos
Our minds operate purposefully, suggesting that the entire universe might be teleological.
It would be odd for human minds to be the only teleological entities in the universe.
Sartre’s Existentialism
Humans are not born with an innate telos; instead, we have “radical freedom” and must create our own meaning and purpose.
This contrasts with Aquinas, who believed humans share a common telos directed towards the good.
Aquinas’ Essentialism
Aquinas believed human nature is fixed, and all humans are directed towards the same ultimate telos (unity with God), while Sartre argued for individual self-determination.
Support for Universal Human Nature: Universal Moral Precepts
Natural Law is based on universal human nature, with common moral values across societies.
Universal rules like not killing without reason, prohibitions against stealing, and valuing reproduction and education are found in many cultures.
Support for Universal Human Nature: Cultural Similarities
Moral thinkers from different cultures (e.g., Ancient China, Hinduism, Judaism, Christianity) have developed similar moral principles, such as the golden rule (treat others as you wish to be treated).
This suggests that moral views are influenced by a universal human moral nature, supporting the idea that humans have a moral orientation towards the good (telos), which Aquinas proposes as the foundation of his theory.
Criticism of Universal Human Nature: Moral Disagreement
If all humans were born with the ability to understand the primary precepts, there should be more moral agreement. However, there is considerable moral disagreement across cultures.
Moral disagreement is not random but tends to follow cultural lines, implying social conditioning rather than innate moral law.
Criticism of Universal Human Nature: Freud and Fletcher’s Arguments
Freud and others argue that moral views are shaped by social conditioning rather than a natural law.
Fletcher’s positivism suggests ethics must be based on faith, not reason, because there is no inherent natural law accessible to all humans through reason.
Aquinas’ View on Human Nature
Aquinas claims that humans have an orientation towards the good but does not expect universal moral agreement or that humans will always act in good ways.
He acknowledges that factors like original sin, cultural corruption, mistakes in conscience, and lack of virtue can prevent people from doing good.
The existence of core moral views across cultures still supports his theory of an innate moral orientation (telos).
Practical Basis for Cross-Cultural Morality
The universal moral prescriptions (e.g., not killing, not stealing) may arise from the basic practical need for societies to function, rather than from divine law.
Societies require rules to maintain order, so similar moral codes may emerge out of necessity, not moral law.
Biologically Evolved Morality
Similar moral codes across cultures might stem from a biologically evolved moral sense rather than from a God-given telos.
This would suggest that morality is not inherently linked to telos or divine law, but rather to human biological development.
Universality of Natural Law
Natural law is accessible to everyone because all humans are born with the ability to know and apply primary precepts (moral principles), regardless of religious belief.
The law of God is “written on their hearts,” meaning natural law can be followed even without access to divine revelation.
Criticism of Natural Law Ethics (Outdated): Secular Criticism
Secularists argue that biblical morality (divine law) is primitive, coming from ancient human minds rather than God.
J.S. Mill and Freud viewed Old Testament morality as outdated, reflecting early human ignorance.