What We Do Not Know

Our conjectures pass upon us for truths; we will know what we do not know, and often, what we cannot know: so mortifying to our pride is the base suspicion of ignorance.

-- Philip Stanhope, 4th Earl of Chesterfield (1694 - 1773), British statesman and man of letters, Letters to His Son on the Art of Becoming a Man of the World and a Gentleman (1774) entry for 14 December 1756