humans using their reason to decide rules that help meet the requirements of the primary precepts
who created the synderesis rule?
Thomas Aquinas
Aquinas believes that natural law is the same for all people, there is a single standard of truth for everyone
Because humans are inclined towards their destiny, to do good they have a "natural inclination to know the truth about God and live in society" as a result humans should "shun ignorance"
Morals acts lead to the divine intention for humaity