What does the word therefore mean?

Usage examples for therefore

  1. Life is simple, and therefore it is happy. – The Works of the Right Honourable Edmund Burke, Vol. I. (of 12) by Edmund Burke
  2. Therefore, why not now? – The Grand Babylon Hotel by Arnold Bennett
  3. Therefore, I guess we'll leave the question open for the present. – Bert Wilson's Fadeaway Ball by J. W. Duffield