generosity vs self-obsession

generosity

noun
  • A generous act. 

  • The trait of being abundant, more than adequate. 

  • The trait of being willing to donate money, time or resources. 

self-obsession

noun
  • preoccupation with self; egocentrism; selfishness 

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