"Underlying the preaching of the Puritans are three basic axioms: 1. The unique place of preaching is to convert, feed and sustain, 2. The life of the preacher must radiate the reality of what he preaches, 3. Prayer and solid Bible study are basic to effective preaching."

Next Quote

The development of mathematics toward greater precision has led, as is well known, to the formalization of large tracts of it, so that one can prove any theorem using nothing but a few mechanical rules... One might therefore conjecture that these axioms and rules of inference are sufficient to decide any mathematical question that can at all be formally expressed in these systems. It will be shown below that this is not the case, that on the contrary there are in the two systems mentioned relatively simple problems in the theory of integers that cannot be decided on the basis of the axioms.

— Kurt Gödel