Aquinas is regarded as the most influential philosopher / theologian in the Roman Catholic Church.
Aquinas studied the work of Aristotle in University and was greatly influenced by him.
At the time that Aquinas was writing, the church was being increasingly challenged.
At the time that Aquinas was writing, Europe was emerging from a time of intellectual darkness caused by the decline of the Roman Empire.
Immutable - Unchanging / unable to be changed
Innate - Inborn / inbuilt (not developed)
Telos - purpose
Deontological - focusssed on the action
Absolutist - Holds unchanging principles
Normative - deriving from a standard / norm of behaviour that is expected
Natural Law is deontological, absolutist and normative.
Natural Law is deontological because it produces rules and duties. It is a deontological theory which comes out of a teleological worldview (That everything has a telos, that purpose for humans being distinctive and rational.)
Natural Law is absolutist because it is absolute and unchanging. However it is only the Primary Precepts of Natural Law that are absolutist.
Natural Law is normative as it creates norms or values which are inherent in the natural order, accessed by our reason.
Scholar: Aquinas
'A sharing in the eternal law by intelligent creatures'
Aquinas realised the truths of the Bible could be shown to be based on reason as well as faith. Thus allowing Aquinas to defend faith against rising challenges.
Aquinas agreed with Aristotle that everything had a purpose. However, unlike Aristotle, this purpose was given by God.
Aquinas incorporated Aristotle's ideas of the importance of cultivating cardinal virtues, however for Aquinas this was in order to develop as a human being and fulfil ones true nature in relation to God.
For Aquinas, Natural Law was located in the activity of human reasoning.
For Aquinas, we must apply our reason to moral problems and we will find we constantly act under the Natural Law.
Acts are deemed good if they are in line with our true human nature and purpose.
For Aquinas, Natural law designed by God to help us achieve the ultimate purpose: to enjoy fellowship with God and to be perfect in the image of God.
For Aquinas, obeying Natural Law meant doing actions that develop our image to reflect as closely as possible the image of God. However true perfection is not possible on Earth.
Reason plays a key role in Aquinas' development of NML.
Despite NML's divine origin, God was seen as the source of Natural Law, which was rooted in the human mind.
Aquinas saw God as having designed us for the end of perfection.
Aquinas believed we are made in God's image and our purpose was to eventually reflect is image perfectly.
Unlike Aristotle, Aquinas believed in a personal creator: God.
Aquinas saw the final purpose of human being in terms of the eternal rather than the temporal.
Aquinas, unlike Aristotle, argued that the human telos is to be united with God: The Beatific Vision. Human flourishing (eudamonia) and wellbeing are vital to this however the true purpose is found in God.
Aquinas' NML is often regarded as a form of moral absolutism as the emphasis is on the Primary Precepts and their moral obligations.
NML is often seen as deontological as moral behaviour is seen as being determined by these fundamental principles that are not based on consequences.
The role of virtues still plays an important role for Aquinas.
For Aquinas, it is reason that determines how we apply the precepts and leads to the secondary precepts.
Whilst being viewed as deontological, NML can also be seen as teleological as:
It is based in the end of the Beatific Vision
The development of secondary precepts
Eternal Law - God's 'ultimate' law. Due to human imperfection of the Fallen natural order, we can never know this fully. However we can see glimpses through Divine Law.
Divine Law - Revealed through the scriptures and guides humanity to the goal of perfection; although the goal of the Beatific vision is only fully possible in the afterlife.
Natural Law - Our ability to perceive the Primary Precepts and work out through reason how these can be applied in life.
Human Law - Helps society to achieve the common good by establishing a tradition of rules and customary behaviour based on experienced judgements. This is not a perfect law but one in which error is possible.