« Ignorance is Wisdom »

Ignorance is wisdom in proportion to one's information-processing capacity. 

Put differently:

                                  WHAT IS KNOWN BY A GIVEN MIND AT A GIVEN POINT IN TIME

IGNORANCE = ------------------------------------------------------------------------------ =  WISDOM

                                       WHAT CAN BE KNOWN IN THEORY, BY ANY MIND, EVER

Thus, TOTAL KNOWLEDGE is the common denominator of both wisdom and ignorance.