foolishness vs obstinence

foolishness

noun
  • The state of being foolish. 

  • A thing or event that is foolish, or an absurdity. 

obstinence

noun
  • Synonym of obstinacy; Misspelling of obstinance. 

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