casuistry vs perfectionism

casuistry

noun
  • The process of answering practical questions via interpretation of rules, or of cases that illustrate such rules, especially in ethics; case-based reasoning. 

  • A specious argument designed to defend an action or feeling. 

perfectionism

noun
  • An unwillingness to settle for anything less than perfection. 

  • A belief that spiritual perfection may be achieved during life, or that it should be striven for. 

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