When we speak of knowing God, it must be understood with reference to man's limited powers of comprehension. God, as He really is, is far beyond man's imagination, let alone understanding. God has revealed only so much of Himself as our minds can conceive and the weakness of our nature can bear.
For the division of labor demands from the individual an ever more one-sided accomplishment, and the greatest advance in a one-sided pursuit only too frequently means dearth to the personality of the individual.