altruism vs philanthropy

altruism

noun
  • Regard for others, both natural and moral without regard for oneself; devotion to the interests of others; brotherly kindness. 

  • Action or behaviour that benefits another or others at some cost to the performer. 

philanthropy

noun
  • Benevolent altruism with the intention of increasing the well-being of humankind. 

  • Charitable giving, charity. 

  • A philanthropic act. 

  • A charitable foundation. 

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