Miracles: A Preliminary Study.

In Miracles: A Preliminary Study, Lewis argues that before one can learn from the study of history whether or not any miracles have ever occurred, one must first settle the philosophical question of whether it is logically possible that miracles can occur in principle. He makes a case for the reality of miracles by presenting the position that something more than nature, a supernatural world, may exist, including a benevolent creator likely to intervene in reality after creation. Philosophers and scientists including Victor Reppert, William Hasker, and Alvin Plantinga have expanded on the "Argument from reason" contained in the work and credit Lewis with first bringing the argument to light in Miracles.