Related:

• It ain't the parts of the Bible that I can't understand that bother me, it is the parts that I do understand.
  -- Mark Twain (Samuel Clemens) (1835-1910)...
• Those that know, do. Those that understand, teach. -- Aristotle
• Technology is dominated by two types of people: those who understand what they do not manage, and those who manage what they do not understand.
  -- Putt's Law...
• Putt's Law: Technology is dominated by two types of people
  Those who understand what they do not manage....
• In Paris they simply stared when I spoke to them in French
  I never did succeed in making those idiots understand their language. -- Mark Twain (1835-1910)...
• Those who are not shocked by quantum theory do not understand it. -- Niels Boh