ignorance vs sagacity

ignorance

noun
  • The condition of being uninformed or uneducated; lack of knowledge or information. 

  • Sins committed through ignorance. 

sagacity

noun
  • See Thesaurus:wisdom 

  • The quality of being sage, wise, or able to make good decisions; the quality of being perceptive, astute or insightful. 

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