beau idéal vs zenith

beau idéal

noun
  • Ideal excellence, or an imaginary standard of perfection. 

  • An emulable eidolon embodying excellence in a particular respect. 

zenith

noun
  • Highest point or state; peak. 

  • The point in the sky vertically above a given position or observer; the point in the celestial sphere opposite the nadir. 

  • The highest point in the sky reached by a celestial body. 

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