Hey, 

Take a look at this passage from Van Til’s An Introduction to Systematic Theology:

“...in all non-Christian forms of epistemology there is first the idea that to be understood a fact must be understood exhaustively. It must be reducible to a part of a system of timeless logic. But man himself and the facts of his experience are subject to change. How is he ever to find within himself an a priori resting point? He himself is on the move. …Every effort of man to find one spot that he can exha...