conscience vs sorrow

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. 

sorrow

verb
  • To feel grief over; to mourn, regret. 

  • To feel or express grief. 

noun
  • (usually in plural) An instance or cause of unhappiness. 

  • unhappiness, woe 

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