elegance vs presence of mind

elegance

noun
  • The beauty of an idea characterized by minimalism and intuitiveness while preserving exactness and precision. 

  • Grace, refinement, and beauty in movement, appearance, or manners. 

  • Restraint and grace of style. 

presence of mind

noun
  • Focused alertness, quick-thinking resourcefulness, stability of thought and feeling, or good sense, especially in spite of circumstances which are distracting, stressful, or otherwise challenging. 

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