Abigail Adams – Man is a dangerous creature Share this quote: I am more and more convinced that man is a dangerous creature; and that power, whether vested in many or a few, is ever grasping, and, like the grave, cries, Give, give! – Abigail Adams (1744-1818) Letter to John Adams Is this quotation insightful, though-provoking, useful? Click on a star to rate it! Submit Rating Average rating 5 / 5. Vote count: 1