 The abandonment thesis is further defended by Guyer (2016) where in addition to building his case for this thesis based upon the aforementioned depiction of the highest good at AK 8:279, he also argues that in the Religion Kant has given up the Second Critique’s rationale for the postulate of immortality, namely, immortality as required for the sake of an eternal striving for perfection. Rather than being tied to (striving for) perfection, we find in the Religion that our moral worthiness is instead tied to our supreme maxim or “change of heart”.