brutality vs good nature

brutality

noun
  • The state of being brutal. 

  • A cruel or savage act. 

  • The use of excessive physical force, often in the form of violence. 

good nature

noun
  • Habitual kindness or mildness of temper or disposition; amiability. 

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