conscience vs convention

conscience

noun
  • A personification of the moral sense of right and wrong, usually in the form of a person, a being or merely a voice that gives moral lessons and advices. 

  • The moral sense of right and wrong, chiefly as it affects a person’s own behaviour and forms their attitude to their past actions. 

convention

noun
  • A practice or procedure widely observed in a group, especially to facilitate social interaction; a custom. 

  • A formal agreement, contract, rule, or pact. 

  • A treaty or supplement to such. 

  • A meeting or gathering. 

  • The convening of a formal meeting. 

  • A formal deliberative assembly of mandated delegates. 

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