This paper compares the doxastic credentials of the claim that nothing comes from nothing with the doxastic credentials of the claim that there is no causing without changing. I argue that comparison of these two claims supports my contention that considerations about causation do nothing to make theism more attractive than naturalism.

Many commentators have accused Aquinas of committing either a formal or an informal fallacy in his Third Way argument. I believe it is possible to revise the Third Way argument so as to avoid such errors. I here present a revision of the first part of the Third Way that is immune to the objections most commonly raised against it, consonant with the basic tenets of Thomism, and plausible from a contemporary point of view.