Ludwig Wittgenstein wrote in a 1919 letter that his work 'consists of two parts: the one presented here plus all that I have not written. And it is precisely this second part which is the important one.' In Omissions Are Not Accidents, Christopher J. Knight analyzes the widespread apophaticism in texts from the late nineteenth to the late twentieth century. In theology, apophaticism refers to the idea that what we cannot say about God is more fundamental...