extravagance vs stoicism

extravagance

noun
  • Prodigality, as of anger, love, expression, imagination, or demands. 

  • Excessive or superfluous expenditure of money. 

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 extravagance and stoicism occurred in a corpus of books? (source: Google Ngram Viewer )