boldness vs single-mindedness

boldness

noun
  • The state of being bold; courage. 

  • The relative weight of a font; the thickness of its strokes. 

  • presumptuousness 

single-mindedness

noun
  • The property of being single-minded. 

How often have the words boldness and single-mindedness occurred in a corpus of books? (source: Google Ngram Viewer )