erudition vs shrewdness

erudition

noun
  • The refinement, polish and knowledge that education confers. 

  • Profound knowledge acquired from learning and scholarship. 

shrewdness

noun
  • The quality of being shrewd. 

  • An invented collective name for a group of apes. 

How often have the words erudition and shrewdness occurred in a corpus of books? (source: Google Ngram Viewer )