A little learning is dangerous, but downright ignorance is even more disastrous. – Author unknown, from The Galveston Daily News, 1894 June 10th

Not ignorance, but ignorance of ignorance, is the death of knowledge. – Alfred North Whitehead

History shows that there is nothing so easy to enslave and nothing so hard to emancipate as ignorance, hence it becomes the double enemy of civilization. By its servility it is the prey of tyranny, and by its credulity it is the foe of enlightenment. – Lemuel K. Washburn, Is The Bible Worth Reading And Other Essays

Dopeler effect: The tendency of stupid ideas to seem smarter when they come at you rapidly. – Author unknown, supposedly from a Washington Post reader submission word contest