inner man vs stomach

inner man

noun
  • The stomach or appetite. 

  • The spiritual or intellectual part of a person; a person's mind, soul, or nature. 

stomach

noun
  • Desire, appetite (for something abstract). 

  • The part of a garment that covers a person's stomach. 

  • An organ in animals that stores food in the process of digestion. 

  • The belly. 

verb
  • To tolerate (something), emotionally, physically, or mentally; to stand or handle something. 

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