Technical terms, jargon and mumbo jumbo might give you the fleeting warmth of belonging to an exclusive club, but they are the enemies of truth. As the anthropologist Margaret Mead once wrote, if you can’t explain yourself to a twelve-year-old child, stay inside the university or lab until you have a better grasp of your subject matter.
“Teaching is not a lost art, but the regard for it is a lost tradition.”
– Jacques Barzun
See other: Philosophy of Interestingness
Knowledge Guild 
Very astute observations on the parts of both Mead and Barzun.