Cynical, Humanity, ProgressDon Marquis on Progress“The chief obstacle to the progress of the human race is the human race.”Don Marquis US humorist (1878 – 1937)Related Quotes:Don Marquis on Work "When a man tells you that he got rich through hard work,…Don Marquis on Procrastination "Procrastination is the art of keeping up with yesterday." Don Marquis US…H. L. Mencken on Imagination "Any man who afflicts the human race with ideas must be prepared…Indira Gandhi on Science "The power to question is the basis of all human progress." Indira…Frank Borman on Humanity and Progress "Exploration is really the essence of the human spirit." Frank Borman
