Finnis has reached some illiberal conclusions with his theory, arguing against abortion, homosexuality and immigration - this may lead people to reject his arguments since they are incompatible with ideas such as equality, inclusivity and anti-racism
Francis Bacon:
There is no scientific evidence of the basic goods being 'good' since 'good' is not scientifically provable
No God:
without god there cannot be objective moral truths independent of human opinion
Finnis attempts to justify the existence but he is simply justifying a particular cultural view of morallity
No God:
Finnis' natural law does not rely on god to justify why good actions are good.
it is an acceptable theory in an increasing secular world
it can be used if the individual is religious or not
Flexible:
the equality of importance for each basic good and the fact each person can choose to prioritise the goods as they wish makes Finnis' theory very flixible
it is not rigid, but still allows for objective moral answers
No clear guidence:
Finnis says a good action must participate in the basic goods
this means that almost all actions can be justified as good
even if we accept actions can be wrong, because they 'frustrate a good' finnis gives no advice on choosing between good actions.
he states that all actions are equally good - however this seems intuitively wrong.
Finnis makes assumptions:
Finnis makes assumptions about what the basic goods are
he argues they are self evident so do not need to be proven
this is made clear by Finnis adding to his work, removing aesthetic experience and adding the basic good of 'marriage between a man and woman for the purpose of procreation'
Human reason is flawed:
Finnis' theory is based entirely on the theory that humans can reason their way to morality, and discover objective external truths through reason alone.
we cannot test how well we have reasoned so cannot know if Finnis is right.
Grounding problem:
Finnis rejects theoretical reason, saying you cannot live without accepting the 7 basic goods and nine requrements
however he fails to answer what a 'good life' actually is, since a good life is a life which persues the 7 basic goods
this makes the argument cyclical so it is not 'grounded'
Pleasure/Pain:
Basic goods could be argued as persuing pleasure and voiding pain