habit of mind vs temperament

habit of mind

noun
  • A usual way to think of something; a mindset 

temperament

noun
  • A person's usual manner of thinking, behaving or reacting. 

  • Individual differences in behavior that are biologically based and are relatively independent of learning, system of values and attitudes. 

  • A tendency to become irritable or angry. 

  • The altering of certain intervals from their correct values in order to improve the moving from key to key. 

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