" On one hand, Kant thought science led to the conclusion that humans are elements in a vast machine operating by the laws of physics. On the other hand, he said, to salvage morality, we must act as if we were free. And to ratify our moral standards, we must act as if God existed. And because morality makes no sense unless justice prevails in the end, we must act as if there were an afterlife. "

― Nancy R. Pearcey , Finding Truth: 5 Principles for Unmasking Atheism, Secularism, and Other God Substitutes