"If we want to know how to get the better of stupidity, we must seek to understand its nature. This much is certain, that it is in essence not an intellectual defect but a human one. There are human beings who are of remarkably agile intellect yet stupid, and others who are intellectually quite dull yet anything but stupid. " -- Dietrich Bonhoeffer

http://southsidemessenger.com/bonhoeffer-on-stupidity-entire-quote/