What does it mean to be an educated person?

I suppose if you asked twenty people the question you would in all likelihood receive twenty different answers.

I think one thing we can say with certainty is that it is not the memorization of facts. An encyclopedia is not a treatise. 

People who have memorized many facts make great trivial pursuit contestants, but not critical thinkers or problem solvers.

"Education is what survives when what has been learnt has been forgotten."

B. F. Skinner