ambition vs necessity

ambition

noun
  • An object of an ardent desire. 

  • Eager or inordinate desire for some object that confers distinction, as preferment, honor, superiority, political power, or fame; desire to distinguish one's self from other people. 

  • A personal quality similar to motivation, not necessarily tied to a single goal. 

  • A desire, as in (sense 1), for another person to achieve these things. 

verb
  • To seek after ambitiously or eagerly; to covet. 

necessity

noun
  • The condition of being needy; desperate need; lack. 

  • Something which makes an act or an event unavoidable; an irresistible force; overruling power. 

  • Greater utilitarian good; used in justification of a criminal act. 

  • Indispensable requirements (of life). 

  • The negation of freedom in voluntary action; the subjection of all phenomena, whether material or spiritual, to inevitable causation; necessitarianism. 

  • Something necessary; a requisite; something indispensable. 

  • The quality or state of being necessary, unavoidable, or absolutely requisite. 

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