If you can spare just over 30 minutes...

The lighthouse of Christianity shines because it is based on the reality of an objective & universal Moral Code that we mysteriously know & have broken. It is this truth which makes Christianity's offer of forgiveness, & its gift of supernatural help towards keeping that Moral Code, so incredible. In this foundational doodle, Lewis shows that the conscience is as old as Adam & Eve. It is not an invention of civilisation or of great human teachers, but has always been there, witnessing away in the human soul.

See Romans 2.14-15 “Indeed, when Gentiles, who do not have the Moral Law [God gave to Moses], do by nature things required by the Moral Law, they are a law to themselves, even though they do not have the law. They show that the requirements of the Moral Law are written on their hearts (= minds), their consciences also bearing witness, & their thoughts sometimes accusing them & at other times even defending them.”