most people tend either to believe that all reality is in principle knowable or to believe that there is a religious dimension to things. A third alternative--that we can know very little but have equally little ground for religious belief--receives scant consideration, and yet seems to me to be where the truth lies. Simple though it is, people have difficulty getting their minds round it.
A False Dichotomy
Confessions of a Philosopher by Bryan Magee page 441: