Dennis Prager: Judeo-Christian values: part III: "There are four primary problems with reason divorced from God as a guide to morality.
The first is that reason is amoral. Reason is only a tool and, therefore, can just as easily argue for evil as for good. If you want to achieve good, reason is immensely helpful; if you want to do evil, reason is immensely helpful. But reason alone cannot determine which you choose. It is sometimes rational to do what is wrong and sometimes rational to do what is right."
To comment on Dennis' article: A friend recently told me about how pigs act. Pigs are smart but they are ruthlessly selfish. They are smarter than horses or dogs but are, well, pigs because they use their intelligence strictly for selfish wants.
It is interesting that in the Hebrew Bible, the OT, Pigs are "unclean". It's as if God is saying, "don't be like this, I've made you for something greater." God knows that reason is not enough.
Read the whole thing.