There is a hearty Puritanism in the view of human nature which pervades the instrument of 1787. It is the work of men who believed in original sin, and were resolved to leave open for transgressors no door which they could possibly shut. – James Bryce
Dogmatism and skepticism are both, in a sense, absolute philosophies one is certain of knowing, the other of not knowing. What philosophy should dissipate is certainty, whether of knowledge or ignorance. – Bertrand Russell