fortitude vs modesty

fortitude

noun
  • Mental or emotional strength that enables courage in the face of adversity. 

modesty

noun
  • The quality of being modest; having a limited and not overly high opinion of oneself and one's abilities. 

  • Moderate behaviour; reserve. 

  • Pudency, avoidance of sexual explicitness. 

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