appetite vs self-control

appetite

noun
  • Any strong desire; an eagerness or longing. 

  • Desire to eat food or consume drink. 

  • The desire for some personal gratification, either of the body or of the mind. 

self-control

noun
  • The ability to control one's desires and impulses; willpower. 

verb
  • To control oneself or itself. 

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