anger vs stoicism

anger

noun
  • A strong feeling of displeasure, hostility or antagonism towards someone or something, usually combined with an urge to harm, often stemming from perceived provocation, hurt, or threat. 

verb
  • To become angry. 

  • To cause such a feeling of antagonism in. 

stoicism

noun
  • A school of philosophy popularized during the Roman Empire that emphasized reason as a means of understanding the natural state of things, or logos, and as a means of freeing oneself from emotional distress. 

  • A real or pretended indifference to pleasure or pain; insensibility; impassiveness. 

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