What type of life experiences makes someone an INTJ?
An unaffectionate and masculine mother? *strokes psychiatrist beard*
Just kidding! RLY!
I think that INTJs are born, not made... because you sure can't MAKE them into anything else.
"I can never be what I ought to be until you are what you ought to be. You can never be what you ought to be until I am what I ought to be. This is the interrelated structure of reality." -Martin Luther King, Jr.