chastity vs self-confidence

chastity

noun
  • The quality of being chaste: the state of abstaining from any sexual activity considered immoral; avoidance of sexual sins. 

self-confidence

noun
  • A measure of one's belief in one's own abilities 

  • The state of being self-confident 

How often have the words chastity and self-confidence occurred in a corpus of books? (source: Google Ngram Viewer )