I read it in my early twenties and found it unconvincing. To my young and admittedly probably overly stubborn mind, both the "trilemma" and the argument from mo

I read it in my early twenties and found it unconvincing. To my young and admittedly probably overly stubborn mind, both the "trilemma" and the argument from morality appeared to be based on either: a lack of imagination; discomfort in the idea of a world without Christianity; or both. Re. the trilemma: I wouldn't go so far as others here in saying that Jesus was "obviously a lunatic". I would say that there isn't enough in the bible or following writings to dismiss the idea as readily as Lewis seems to. Re. the moral argument: maybe I'm unfairly advantaged by reading about evolutionary psychology but it's fairly natural/straightforward for me to conceive of a world in which humans share something like an innate core of moral values without any need for a supernatural explanation. In fact Lewis' apparent conviction about this reminds me of someone like Samuel Harris at the other extreme, who thinks we can do away with the is-ought problem by stipulating that there's a "worst possible world" which obviously all moral people would jointly want to move away from.